Preview Extract
Chapter 2: Time Value of Money
2.1)=
I (iP
=
) N (0.06)($2, 000)(5)
= $600
2.2)
โข
Simple interest:
=
F P (1 + iN )
=
$6, 000 $3, 000(1 + 0.08 N )
N = 12.5 years (or 13 years)
โข
Compound interest:
$6, 000 $3, 000(1 + 0.07) N
=
2 = 1.07 N
log 2 = N log 1.07
N = 10.24 years (or 11 years)
2.3)
โข
Simple interest:
=
I (iP
=
) N (0.07)($15, 000)(25)
= $26, 250
โข
Compound interest:
I= P ๏ฃฎ๏ฃฐ(1 + i ) N โ 1๏ฃน๏ฃป= $15, 000 ๏ฃฎ๏ฃฐ(1.07) 25 โ 1๏ฃน๏ฃป
= $66, 411.50
2.4)
โข
A : Simple interest:
=
I (iP
=
) N (0.06)($10, 000)(15)
= $9, 000
โข
B : Compound interest:
I= P ๏ฃฎ๏ฃฐ(1 + i ) N โ 1๏ฃน๏ฃป= $10, 000 ๏ฃฎ๏ฃฐ(1.055)15 โ 1๏ฃน๏ฃป
= $12,324.76
B is a better option.
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
Page
1
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage
in a|retrieval
system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to:
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.5)
โข
Compound interest:
=
F $1, 000(1 + 0.065)5
= $1,370.09
โข
Simple interest:
=
F $1, 000(1 + 0.068(5))
= $1,340
The compound interest option is better.
2.6)
โข
Loan balance calculation:
End of period
0
1
2
3
4
5
Principal
Payment
$0.00
$1,670.92
$1,821.30
$1,985.22
$2,163.89
$2,358.64
Interest
Payment
$0.00
$900.00
$749.62
$585.70
$407.03
$212.28
Remaining
Balance
$10,000.00
$8,329.08
$6,507.78
$4,522.56
$2,358.67
$0.00
2.7)
=
P $5, 000(
=
P / F , 7%,5) $5,
=
000(0.7130) $3,565
2.8)
=
F $25, 000(
=
F / P,8%, 2) $25,
=
000(1.1664) $29,160
2.9)
โข
Alternative 1
P = $100
โข
Alternative 2
=
P $120( P=
/ F ,10%, 2) $120(0.8264)
= $99.168
โข
Alternative 3
=
P $170( P=
/ F ,10%,5) $170(0.6209)
= $105.553
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
2
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
โข
Alternative 3 is preferred
2.10) F $1, 000(
=
=
F / P,5%,3) $1,
=
000(1.1576) $1,157.6
2.11) F $500(=
=
P / F ,9%,5) $500(0.6499)
= $324.95
2.12)
i = 10.5% , two-year discount rate is (1 + 0.105) 2 =
1.221(22.1%)
2.13)
(a)
=
F $6, 000(
=
F / P, 6%,8) $6,
=
000(1.5938) $9,563
(b)
=
F $1,550(=
F / P,5%,12) $1,550(1.7959)
= $2, 784
(c)
=
F $8, 000(
=
F / P,9%,32) $8,
=
000(15.7633) $126,106
(d)
=
F $12, 000(
=
F / P,8%,9) $12,
=
000(1.999) $23,988
2.14)
(a)
=
P $5,500(
=
P / F ,10%, 6) $5,500(0.5645)
= $3,105
(b)
=
P $7, 000(
=
P / F ,9%,3) $7,
=
000(0.7722) $5, 405
(c)
=
P $22, 000(
=
P / F ,8%,5) $22,
=
000(0.6806) $14,973
(d)
=
P $13, 000(
=
P / F , 7%,8) $13,
=
000(0.5820) $7,566
2.15)
(a)
=
P $8, 000(
=
P / F ,8%,5) $8,
=
000(0.6806) $5, 445
(b)
=
F $10, 000(
=
F / P,8%, 4) $10,
=
000(1.3605) $13, 605
2.16)
=
F 3=
P P(1 + 0.07) N
log 3 = N log 1.07
N = 16.24 years (or 17 years)
2.17)
=
F 2=
P P(1 + 0.06) N
log 2 = N log 1.06
N = 11.896 years (or 12 years)
2.18)
โข
Rule of 72:
72 / 8 = 9 years
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
3
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
=
F 2=
P P(1 + 0.08) N
log 2 = N log 1.08
N = 9 years
389
2.19)
=
F $1(1.08)
=
$10, 042, 477,894, 213
2.20)
=
P $35, 000( P / F ,9%, 4) + $10, 000( P / F ,9%, 2)
= $35, 000(0.7084) + $10, 000(0.8417)
= $33, 211
2.21)
=
P $450, 000(
=
P / F ,5%,5) 450,
=
000(0.7835) $352,575
2.22)
โข
Simple interest (John):
=
I iPN
= (0.1)($1, 000)(5)
= $500
โข
Compound interest (Susan):
I= P ๏ฃฎ๏ฃฐ(1 + i ) N โ 1๏ฃน๏ฃป= $1, 000 ๏ฃฎ๏ฃฐ(1 + .095)5 โ 1๏ฃน๏ฃป
= $574.24
โข
2.23) P=
2.24)
Susanโs balance will be greater by $74 (or $74.24 to be exact)
$2, 000 $800 $1, 000
+
+
= $3, 230.65
1.11
1.12
1.13
P=
$3, 000 $3,500 $4, 200 $6,500
+
+
+
= $14, 292.8
1.052
1.053
1.054
1.055
2.25)
=
F $2, 000( F / P,8%,10) + $3, 000( F / P,8%,8)
+ $4, 000( F / P,8%, 6)
= $16, 218
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
4
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.26)
=
P $3, 000, 000 + $2, 400, 000( P / A,8%,5)
+ $3, 000, 000( P / A,8%,5)( P / F ,8%,5)
= $20, 734, 774.86
2.27)
=
P $3, 000( P / F ,9%, 2) + $4, 000( P / F ,9%,5)
+ $5, 000( P / F ,9%, 7)
= $7,859.7
2.28)
โข
Method 1:
=
F $2, 000(1.05)(1.1)(1.15) + $3, 000(1.1)(1.15) + $5, 000
= $11, 451.5
โข
Method 2:
$6,451.50
๏ถ๏ด๏ด๏ด๏ด๏ด๏ด๏ท๏ด๏ด๏ด๏ด๏ด๏ด๏ธ
F=
$2, 000(1.05) + $3, 000 ) (1.10)(1.15) + $5, 000
(๏ฑ๏ด๏ด๏ด
๏ด๏ฒ๏ด๏ด๏ด๏ด
๏ณ
$5,100
= $11, 451.50
2.29)
$180, 000 = $20, 000( P / A,9%,5) โ $10, 000( P / F ,9%,3) +
X ( P / F ,9%, 6)180, 000 โ 20, 000(3.8897) + 10, 000(0.7722)
= X (0.5963)
X = $184,350.16
2.30)
F=
$80, 000 =
$10, 000(1.08)5 + $12, 000(1.08)3 + X (1.08) 2
X = $43, 029.99
2.31)
4
100(1.08)
=
8(1.08)3 + 9(1.08) 2 + 10(1.08) + 11 + X
X = $93.67
This is the minimum selling price. If John can sell the stock for a higher price
than $93.67, his return on investment will be higher than 8%.
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
5
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.32) P =
$60, 000 $77, 000 $65, 000 $57, 000 45, 000
+
+
+
+
= $212,873.89
1.14
1.142
1.143
1.144
1.145
2.33) F $5, 000(
=
=
F / A, 6%,10) $5,
=
000(13.1808) $65,904
2.34)
(a)
=
F $5, 000(
=
F / A,5%, 7) $5,
=
000(8.1420) $40, 710
F = $5, 000( F / A,5%, 7)(1.05)
(b)
= $5,
=
000(8.1420)(1.05) $42, 745.50
2.35)
(a)
=
F
(b)
=
F
(c)
=
F
(d)
=
F
$6, 000(
=
F / A, 6%, 6) $6,
=
000(6.9753) $41,851.80
$8,
=
000( F / A, 7.25%,9) $96,825.60
$15, 000(
=
F / A,8%, 25) $15,
=
000(73.1059) $1, 096,588.50
$3,
=
000( F / A,9.75%,10) $47, 242.80
2.36)
(a)
=
A
(b)
=
A
(c)
=
A
(d)
=
A
$18, 000(
=
A / F ,5%,13) $18,
=
000(0.0565) $1, 017
$11, 000(
=
A / F , 6%,8) $11,
=
000(0.1010) $1,111
$8, 000(=
A / F ,8%, 25) $8,
=
000(0.0137) $109.6
$12,
=
000( A / F , 6.85%,8) $1,176
2.37) A $250,=
=
000( A / F ,5%,5) $250,
=
000(0.1810) $45, 250
2.38) A $25, 000(
=
=
A / F ,5%,5) $25,
=
000(0.1810) $4,525
2.39)
$35, 000 = $3, 000( F / A, 6%, N )
( F / A, 6%, N ) = 11.6666
(1 + 0.06 ) โ 1 = 11.6666
N
0.06
log(1.7)
N โ
log(1.06) =
N = 9.11 years
2.40)
A = $10, 000( A / F ,9%,5)
= $1, 670.92
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
6
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.41)
F =$500(1.04)10 + $1, 000(1.04)8 + $1, 000(1.04)6
+$1, 000(1.04) 4 + $1, 000(1.04) 2 + $1, 000
= $6, 625.47
2.42)
(a)
=
A
(b)
=
A
(c)
=
A
(d)
=
A
$18, 000(
=
A / P,8%,5) $18,
=
000(0.2505) $4,509
$4,
=
200( A / P,9.5%, 4) $1,310.82
$7, 700(
=
A / P,11%,3) $7,
=
700(0.4092) $3,150.84
$23, 000(
=
A / P, 6%, 20) $23,
=
000(0.0872) $2, 005.60
2.43)
โข
Equal annual payment amount:
=
A $20, 000(
=
A / P,10%,3) $20,
=
000(0.4021) $8, 042
โข
Loan balance calculation:
End of period
0
1
2
3
Principal
Payment
$0.00
$6,042.00
$6,646.20
$7,310.82
Interest
Payment
$0.00
$2,000.00
$1,395.80
$731.18
Remaining
Balance
$20,000.00
$13,958.00
$7,311.80
$0
Interest payment for the second year = $1,395.80
2.44)
(a)
=
P
(b)
=
P
(c)
=
P
(d)
=
P
$9, 000(
=
P / A, 6%,8) $9,
=
000(6.2098) $55,888.20
$1,500(
=
P / A,9%,10) $1,500(6.4177)
= $9, 626.55
$7,500(
=
P / A, 7.25%, 6) $35, 475
$9,
=
000( P / A,8.75%,30) $52,529
0.0625 (1 + 0.0625 )
2.45) (a) =
( A / P, 6.25%,36) =
0.07044
36
(1 + 0.0625) โ 1
36
(1 + 0.0925) โ 1 10.81064
=
( P / A,9.25%,125) =
125
0.0925 (1 + 0.0925 )
125
(b)
2.46) F $500(=
=
F / A, 7%,15)(1.07) $500(25.1290)(1.07)
= $13, 444.02
2.47) A $5, 000(
=
=
A / P,11%,5) $5,
=
000(0.2706) $1,353
If you make the first payment on the loan at the end of the second year:
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
7
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
=
F $5, 000( F / P,11%,1)(
=
A / P,11%, 4) $5,
=
000(1.11)(0.3223) $1, 788.78
2.48)
New equipment: $195,000
O&M cost: P $30, 000(
=
=
P / A,10%,10) $30,
=
000(6.1446) $184,338
New equipment isnโt worth buying.
2.49) P =
โ$3, 460 +
2.50)
=
P
250
=
0 ๏ I = 7.225%
i
1, 000
= $10, 000
0.1
2.51)
F= F1 + F2
= $5, 000( F / A,8%,5) + $2, 000( F / G,8%,5)
= $5, 000( F / A,8%,5) + $2, 000( A / G,8%,5)( F / A,8%,5)
= $5, 000(5.8666) + $2, 000(1.8465)(5.8666)
= $50,998.35
2.52)
=
F $5, 000( F / A,10%,5) โ $500( F / G,10%,5)
= $5, 000( F / A,10%,5) โ $500( P / G,10%,5)( F / P,10%,5)
= $5, 000(6.1051) โ $500(6.8618)(1.6105)
= $25, 000.04
2.53)
=
P $100( P / F ,8%,1) + $150( P / F ,8%,3)
+$200( P / F ,8%,5) + $250( P / F ,8%, 7)
+$300( P / F ,8%,9) + $350( P / F ,8%,11)
= $793.83
2.54)
=
A $30, 000 โ $3, 000( A / G,8%,10)
= $30, 000 โ $3, 000(3.8713)
= $18,386.1
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
8
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.55)
=
P $3, 000( P / A,12%,8) + $600( P / G,12%,8)
= $3, 000(4.9676) + $600(14.4714)
= $23,585.64
2.56)
C ( P / G,9%, 6) = $1000( F / P,9%, 4) + $800( F / P,9%,3) + $600( F / P,9%, 2)
+$400( F / P,9%,1) + $200
C (10.0924) = $3796.46
โ 1, 000( F / P,9%, 4) + 800( F / A,9%, 4) โ 200( P / G,9%, 4)( F / P,9%, 4)
$376.17
โดC =
P = $6, 000( P / A1, 5%,9%, 40)
1 โ (1.05 ) (1.09 )
= $6, 000
0.09 โ 0.05
= $116,379.57
$116379.57 *( F / P,9%, 40) = $3, 655.412.47
40
2.57)
โ40
2.58) (a)
=
P $10, 000, 000( P / A1, โ 10%,12%, 7)
1 โ (1 โ 0.1) (1 + 0.12 )
= $10, 000, 000 โ
0.12 โ ( โ0.1)
7
โ7
= $35, 620,126
(b) Note that the oil price increases at the annual rate of 5% while the oil
production decreases at the annual rate of 10%. Therefore, the annual revenue
can be expressed as follows:
$100(1 + 0.05) n โ1100, 000(1 โ 0.10) n โ1
An =
= $10, 000, 000(0.945) n โ1
= $10, 000, 000(1 โ 0.055) n โ1
This revenue series is equivalent to a decreasing geometric gradient series with
g = -5.5%.
N
An
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
9
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
1
2
3
4
5
$10,000,000
$9,450,000
$8,930,250
$8,439,086
$7,974,937
$7,536,315
$7,121,818
6
7
=
P $10, 000, 000( P / A1, โ 5.5%,12%, 7)
1 โ (1 โ 0.055 ) (1 + 0.12 )
= $10, 000, 000 โ
0.12 โ ( โ0.055 )
7
โ7
= $39, 746, 494.51
(c) Computing the present worth of the remaining series ( A4 , A5 , A6 , A7 )
at the end of period 3 gives
P $8, 439, 086.25( P / A1 , โ5.5%,12%, 4)
=
1 โ (1 โ 0.055 ) (1 + 0.12 )
= $8, 439, 086.25 โ
0.12 โ ( โ0.055 )
4
โ4
= $23, 782, 713
2.59)
20
โ A (1 + i)
P
=
n =1
โn
n
20
= โ (2, 000, 000)n(1.06) n โ1 (1.06) โ n
n =1
20
1.06 n
)
= (2, 000, 000 /1.06)โ n(
1.06
n =1
20
= (2, 000, 000 /1.06)โ n
n =1
= (2, 000, 000 /1.06)
20(21)
2
= $396, 226, 415.1
2.60)
(a) The withdrawal series would be:
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
10
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
Period
Withdrawal
11
12
$3,000
$3,000(1.06)
13
$3,000(1.06) 2
14
$3, 000(1.06)3
15
$3, 000(1.06) 4
Equivalent worth of the withdrawal series at period 10, using i = 8%:
P = $3,000(P / A1 ,6%,8%,5)
ลนลน= $3,000 โ
(
) (1 + 0.08)
0.08 โ (0.06 )
1 โ 1 + 0.06
5
โ5
ลนลน= $13,383.92
Assuming that each deposit is made at the end of each year,
the following equivalence must be hold:
$13,384 = A( F / A,8%,10)
= 14.4866 A
A = $923.88
(b) Equivalent present worth of the withdrawal series at 6%
5
=
P $3, 000( P /=
A1 , 6%, 6%,5) $3,
=
000
$14,150.94
1 + 0.06
$14,151 = A(F / A,6%,10)
= 13.1808A
A = $1,073.60
2.61) =
$1, 000, 000 A=
( F / A, 6%,30) A(79.0582)
๏จ A = $12,649 should be set aside on the account
a)
=
$1, 000, 000 A=
( P / A, 6%, 20) A(11.4699)
๏จ A = $87,185 / year
b)
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
11
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
$1, 000, 000 = A1 ( P / A1, 3%, 6%, 20)
1 โ (1.03) (1.06 )
= A1
0.06 โ 0.03
= $68, 674 / year
20
โ20
2.62)
$50 $70 $50 2C C
2C 5.52C
+ 2+ 3=
+ 2+ 3=
1.1 1.1 1.1 1.1 1.1 1.1
1.331
4.1473C
โ 140.8715 =
C = $33.97
2.63)
=
P [$100( F / A,10%,8) + $50( F / A,10%, 6)
+$50( F / A,10%, 4)]( P / F ,10%,8)
= [$100(11.4359) + $50(7.7156)
+$50(4.6410)](0.4665)
= $821.70
2.64)
2.65)
Select (a).
P=
โ$500( P / F ,10%,1) + $300( P / A,10%,3)( P / F ,10%,1)
+$800( P / F ,10%,5)
=
โ$500(0.9091) + $300(2.4869)(0.9091)
+$800(0.6209)
P = $720.42
2.66)
Computing the equivalent worth at period 3 will require only two different
types of interest factors.
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
12
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
P1 = $200( P / A,10%,5)( F / P,10%,3)
= $200(3.7908)(1.3310)
= $1, 009.11
=
P2 A( P / A,10%, 2)( F / P,10%,3) + A( P / A,10%, 2)
= A(1.7355)(1.3310) + A(1.7355)
= A(4.0455)
A = $1, 009.11/ 4.0455
= $249.44
2.67)
=
P1,1 $200( P / A,10%, 4) โ 100( P / A,10%, 2)
= $200(3.1699) โ 100(1.7355)
= 460.43
P2,1= X + X ( P / A,10%, 4)
= X + X (3.1699)
= 4.1699 X
P1,1 = P2,1
$460.43 = 4.1699 X
X = $110.42
2.68)
=
P1 $50( P / A,10%, 4) + $35( P / A,10%, 2)( P / F ,10%, 2)
= $50(3.1699) + $35(1.7355)(0.8264)
= 208.6926
=
P2 C ( P / A,10%, 4) + C ( P / A,10%, 2)( P / F ,10%,1)
= C (3.1699) + C (1.7355)(0.9091)
= 4.7476C
P1 = P2
C = $43.96
2.69)
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
13
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
=
C ( F / A,9%,8) $5, 000( P / A,9%, 2) + $5000
=
C (11.0285) $5, 000(1.7591) + $5000
C = $1, 250.90
2.70)
The original cash flow series is
n
0
1
2
3
4
5
6
7
8
9
10
An
$0
$800
$820
$840
$860
$880
$900
$920
$300
$300
$300 – $500
2.71)
2C + C ( P / A,12%, 7)( P / F ,12%,1)
= $1, 200( P / A,12%,8) โ 400( P / A,12%, 4)
2C + C (4.5638)(0.8929)
= $1, 200(4.9676) โ 400(3.0373)
6.075C = $4, 746.20
C = $781.27
2.72)
200(1.06)(1.08)(1.12)(1.15)
+ X (1.08)(1.12)(1.15)
+ $300(1.15)
= $1000
247.9 + 1.39104 X + 345 =
1000
1.39104 X = 360.1
X = $258.87
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
14
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.73)
A( F / A,8%,18)
= $20, 000 + $20, 000( P / A,8%,3)
A(37.4502)
= $20, 000 + $20, 000(2.5771)
= $71,542
A = $1,910.32
2.74)
=
P1 $500 + $500( P / A,10%,5)
= $500 + $500(3.7908)
= $2,395.4
P2 = X [ ( P / A,10%, 4) ]
= X [ (3.1699) ]
= 2,395.4
โดX =
$755.67
2.75)
P1,2 = X ( P / F ,8%,3)
= X (0.7938)
P2,2 = 800( P / A,8%,10)
= 800(6.7101)
= 5368.08
X = 6, 762.51
2.76)
C ( P / A,9%,5)( P / F ,9%,1) = $4, 000
C (3.8897)(0.9174) = $4, 000
C = $1,120.95
2.77)
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
15
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.82)
=
$104(1 + i ) 25 $7.92( F / A, i %, 25)(1 + i )
๏ฃซ (1 + i ) 25 โ 1 ๏ฃถ
= $7.92 ๏ฃฌ
๏ฃท (1 + i )
i
๏ฃญ
๏ฃธ
โด i =6.37%
2.83) The equivalent future worth of the prize payment series at the end of
Year 20 (or beginning of Year 21) is
F1 = $1,952,381( F / A, 6%, 20)
= $1,952,381(36.7856)
= $71,819,506.51
The equivalent future worth of the lottery receipts is
=
F2 ($36,100, 000 โ $1,952,381)( F / P, 6%, 20)
= ($36,100, 000 โ $1,952,381)(3.2071)
= $109,514,828.9
The resulting surplus at the end of Year 20 is
=
F2 โ F1 $109,514,828.9 โ $71,819,506.51
= $37, 695,322.4
2.84)
$1, 000( F / P,9.4%,5) + $500( F / A,9.4%,5)
(1 + 0.094)5 โ 1
)
0.094
= $1, 000(1.5671) + $500(6.0326)
= $4,583.4
= $1, 000((1 + 0.094)5 ) + $500(
$4,583.4( F / P,9.4%, 60)
= $4,583.4((1 + 0.094)60 )
= $4,583.4(219.3)
= $1, 005,141.21
The main question is whether or not the U.S. government will be
able to invest the social security deposits at 9.4% interest over 60
years.
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
17
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Fundamentals of Engineering Economics, 3rd ed. ยฉ2012
2.85)
PContract =+
$3,875, 000 $3,125, 000( P / F , 6%,1) + $5,525, 000( P / F , 6%, 2)
+6, 275, 000( P / F , 6%,3) + 6, 625, 000( P / F , 6%, 4)
+7575000( P / F , 6%,5) + 8125000( P / F , 6%, 6)
+ $8,875, 000( P / F , 6%, 7)
= $3,875, 000 + $2,550, 000(0.9434)
+ $5,525, 000(0.8900) + ๏
+ $8,875, 000(0.6651)
= $39,548, 212.5
ยฉ 2013 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This publication
is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system,
or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),
write to:
18
Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.
Document Preview (18 of 324 Pages)
User generated content is uploaded by users for the purposes of learning and should be used following SchloarOn's honor code & terms of service.
You are viewing preview pages of the document. Purchase to get full access instantly.
-37%
Solution Manual for An Elementary Introduction to Mathematical Finance, 3rd Edition
$18.99 $29.99Save:$11.00(37%)
24/7 Live Chat
Instant Download
100% Confidential
Store
Olivia Smith
0 (0 Reviews)
Best Selling
Test Bank for Hospitality Facilities Management and Design, 4th Edition
$18.99 $29.99Save:$11.00(37%)
Chemistry: Principles And Reactions, 7th Edition Test Bank
$18.99 $29.99Save:$11.00(37%)
The World Of Customer Service, 3rd Edition Test Bank
$18.99 $29.99Save:$11.00(37%)
Data Structures and Other Objects Using C++ 4th Edition Solution Manual
$18.99 $29.99Save:$11.00(37%)
Solution Manual for Designing the User Interface: Strategies for Effective Human-Computer Interaction, 6th Edition
$18.99 $29.99Save:$11.00(37%)
2023-2024 ATI Pediatrics Proctored Exam with Answers (139 Solved Questions)
$18.99 $29.99Save:$11.00(37%)