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16. SIMPLE INTEREST/COMPOUND INTEREST Max. Marks : 30 1.
2.
3.
4.
5.
6.
No. of Qs. 30
T ime : 20 min.
The simple simple interes interestt accrue accrued d on on a sum sum of of certa certain in princip principal al is ` 2000 2000 in five years years at the r ate of 4% per per annum. an num. What would be the compo compound und interest accrued on same principal at same rate in two years ? (a) ` 71 716 (b) ` 72 724 (c) ` 824 (d) ` 816 (e) None of th ese What What total total amo amount unt wou would ld Mith Mithile ilesh sh get get at the end of of three three years if he invests an amount of ` 11200 11200 in a scheme, which offers simple interest 8.5% per annum for three years ? (a) ` 14 14056 (b) ` 14 14348 (c) ` 13852 13852 (d) ` 15064 (e) None of th ese Arun Arun inves investe ted d a sum of of money money at a certa certain in rate rate of simpl simplee interest for a period of for a period of four years. Had he invested the same sum for a period of six years the total interest earned by him would have been fifty fifty per cent more than the th e earlier interest amount. What was the rate of interest per cent cent per annum? (a) 4 (b) 8 (c) 5 (d) Can not be determined (e) None of the these se Rohit Rohit inve invest sted ed some some amo amount unt at the the rate rate of of 6 pcpa pcpa and at at the end of 2 yr he got ` 8730 simple interest. How much compound interest he will get on same amount and same rate of interest after 2 yr. (a) ` 58 5820 (b) ` 59 5949.60 (c) ` 5900 5900 (d) ` 5994.60 (e) None of th ese What amount amount a man would would have have rece receive ived d on on a princi principal pal of 4000 after two yr simple interest @ 5% per an num ? ` 4000 (a) ` 41 4161 (b) ` 52 5200 (c) ` 4410 4410 (d) ` 41 4100 (e) ` 4190 4190 The simpl simplee inte interes restt accr accrue ued d on on an amount amount of of ` 27500 at the ` 27500 end of three years is ` 10230. 10230. What would be the approximate compound interest accrued on the same amount at the same rate in th e same period ?
R ESPONSE ESPONSE GRID
1. 6. 11.
a
c
d
e
a
c
d
e
a
c
d
e
2. 7. 12. 12 .
a
c
d
e
a
c
d
e
a
c
d
e
Date : ........./......../................
(a) ` 11 11550 (b) ` 12 12620 (c) ` 10950 10950 (d) ` 11 11900 (e) ` 13500 13500 7. The simpl simplee inter interes estt accru accrueed on on an amou amount nt of of ` 84000 84000 at the end of 3 yr is ` 30240. 30240. What would be the compound interest accrued on the same amount at the same rate in the same period ? (a) ` 30 30013.95 (b) ` 31 31013.95 (c) ` 32013.95 32013.95 (d) ` 33 33013.95 (e) ` 34013.95 34013.95 8. Kruti took took a loan loan at a simple simple interes interestt rate rate of of 6% 6% in the the first first year with an in crease of 0.5% in each subsequent year. She paid interest of ` 3375 3375 after four years. How much loan did she take ? (a) ` 12 12500 (b) ` 33140 33140 (c) ` 15 15800 (d) Can n ot be determined (e) (e) None None of thes thesee 9. The simpl simplee inter interes estt accru accrueed on on an amou amount nt of of ` 40000 40000 at the end of three years ` 12000. 12000. What would be the compound interest accrued on the same amount at the same rate in th e same period ? (a) ` 18 18765 (b) ` 15 15350 (c) ` 21555 21555 (d) ` 13240 (e) None of th ese 10. Vishwa Vishwass borro borrowe wed d a total total amou amount nt of of ` 30000, 30000, part of it on simple interest rate of 12% per annum and remaining on simple interest interest rate of 10% per ann um. If at the end of 2 yr he paid in all ` 36480 36480 to settle the loan amount, what was the amount borrowed borrowed at 12% pre annum ? (a) ` 16 16000 (b) ` 18 18000 (c) ` 17500 17500 (d) ` 12000 (e) None of th ese 11. The simpl simplee interes interestt accrue accrued d on an amou amount nt of ` 17000 17000 at the end of four years is ` 6800. 6800. What would be the compound interest accrued on the same amount at the same rate in th e same period ? (a) ` 78 7889.7 (b) ` 8324 8324 (c) ` 69 6990.5 (d) Can not be determined (e) None None of these these
3. 8. 13 .
a
c
d
e
a
c
d
e
a
c
d
e
4. 9. 14 .
a
c
d
e
a
c
d
e
a
c
d
e
5. 10 . 15 .
a
c
d
e
a
c
d
e
a
c
d
e
32
12.
13.
A sum of Rs. 2600 is lent out in two parts in such a way that the interest on one part at 10% for 5 years is equal to that on the other part at 9% for 6 years. The sum lent out at 10% is ________ . (a) 1250 (b) 1350 (c) 1450 (d) 1550 (e) 1650 The simple interest on a sum of money is
1 16
20.
and in 8 years the interest amounted to ` 340 less than the sum lent. Find the sum lent. (a) 500 (d) 1500 21.
th of the principal
(a) (d) 14.
6 4
4 1
(b)
%
(e)
%
17.
18.
19.
(c)
%
6
5
(c)
9
R ESPONSE GRID
16. 21. 26. 31.
a
c
d
e
a
c
d
e
a
c
d
e
a
c
d
e
17. 22. 27. 32.
(b) 4 p.c.p.a. (e)
(c) 6 p.c.p.a.
None of these
The compound interest earned by Suresh on a certain amount at the end of two years at th e rate of 8 p.c.p.a. was ` 1414.4. What was the total amount that Suresh got back at the end of two years in the form of principal plus interest
1 10 % 2
earned ?
23.
a
c
d
e
a
c
d
e
a
c
d
e
a
c
d
e
(a) ` 9414.4
(b) ` 9914.4
(d) ` 8914.4
(e)
(c) ` 9014.4
None of these
What would be the compound interest accrued on an amount of ` 7400 @ 13.5 p.c.p.a. at the end of two years ?
(e)
%
5 p.c.p.a.
(d) 8 p.c.p.a.
1
1 (b) 11 % 2
Sonika invested an amount of ` 5800 for 2 years. At what
(a) 22.
%
1 11 % 2 7 At a certain rate of simple interest, a certain sum doubles itself in 10 years. It will treble itself in years ________ . (a) 10 (b) 20 (c) 25 (d) 30 (e) 45 The difference between the interest received from two different banks on ` 500 for 2 years is ` 2.50. The difference between their r ates is _______ . (a) 1% (b) 2% (c) 0.5% (d) 0.25% (e) 1.5% Some amount out of ` 7000 was lent at 6% per annum and the remaining at 4% per annum. If the total simple interest from both the fractions in 5 yrs. was ` 1600, find the sum lent at 6% per annum. (a) 1500 (b) 2000 (c) 2500 (d) 3000 (e) 5000 A sum of money at simple interest amounts to ` 600 in 4 years and ` 650 in 6 years. Find the rate of interest per annum. (a) 3% (b) 5% (c) 9% (d) 10% (e) 15% Arun and Ramu are friends. Arun borrowed a sum of ` 400 at 5% per annum simple interest from Ramu. He returns the amount with interest after 2 years. Ramu returns to Arun 2% of the total amount return ed. How much did Arun r eceive ? (a) 9 (b) 8.80 (c) 7.5 (d) 7 (e) 10.5 (d)
16.
1
7
3
1
(c) 1000
at the end of two years ?
% 5 7 A sum of money will double itself in 16 years at simple interest at in yearly rate of ________ . 1 (a) 13 % 2
15.
6
1
(b) 600 (e) 1700
rate of compound interest will she get an amount of ` 594.5
and the number of years is equal to the rate per cent per annum. Th e rate per cent annum is ________ . 1
A person lent at certain sum of money at 4% simple interest;
(Rounded off to two digits after decimal)
24.
(a) ` 2 136.87
(b) ` 2306.81
(d) ` 2132.87
(e)
(c) ` 2032.18
None of these
If the compound interest accrued on an amount of ` 14500 in two years is ` 4676.25, what is the rate of interest p.c.p.a ? (a) 11 (d) 18
25.
(b) 9 (c) 15 (e) None of these
What would be the compound interest accrued on a amount of ` 8000 at the rate of 15% per annum in three years ?
26.
(a) ` 4283
(b) ` 4051
(d) ` 4325
(e)
(c) ` 4167
None of these
What would be the compound interest accrued on an amount of ` 7850 at the r ate of 14% per annum in two years ? (a) ` 2 351.86
27.
(b) ` 2880.37
(c) ` 2518.22
(d) ` 2290.23 (e) ` 34013.95 What will be the compound interest accrued on an amount of ` 10000 @ per annum in two years if the interest is compounded half-yearly ? (a) ` 4400 (d) ` 4680
28.
(b) ` 4600 (c) ` 4641 (e) None of these
What will be the difference between the simple interest and compound interest earned on a sum of ` 985.00 at the rate of 14% per annum at the end of two years ?
18. 23. 28. 33.
(a) ` 16.408
(b) ` 14.214
(d) ` 17.405
(e)
a
c
d
e
a
c
d
e
a
c
d
e
a
c
d
e
19. 24. 29. 34.
(c) ` 19.218
None of these
a
c
d
e
a
c
d
e
a
c
d
e
a
c
d
e
20. 25. 30. 35.
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a
c
d
e
a
c
d
e
a
c
d
e
a
c
d
e
33
The simple interest on a certain sum of money for 4 years at 33. In what timewill 6250amount to ` 6632.55 at 4 p.c. compound 4 per cent per annum exceeds the compound interest on the interest payable half-yearly? same sum for 3 years at 5 per cent annum by ` 57. Find the 3 3 3 (a) (b) (c) sum. 5 2 4 (a) 24000 (b) 25000 (c) 26000 (d) 3000 (e) 40000 5 9 (d) (e) 30. A sum of money at compound interest amounts in two years 2 11 to ` 2809, and in three years to ` 2977.54. Find the rate of 34. What sum of money at compound interest will amount to interest and the original sum. ` 2249.52 in 3 years if the rate of interest is 3% for the first (a) 2000 (b) 2100 (c) 2200 year, 4% for the second year, and 5% for the third year? (d) 2500 (e) 3000 (a) 2000 (b) 4000 (c) 3000 31. A sum is invested at compound interest payable annually. (d) 5000 (e) 7000 The inter est in two successive years was ` 225 and ` 236.25. 35. If the simple interest on a certain sum of money for 3 years at Find the rate of interest. 5% is ` 150, find the corresponding CI. (a) 2% (b) 3% (c) 5% (a) 197 (b) 157.62 (c) 137.36 (d) 9% (e) 11% (d) 117.17 (e) 127.34 32. A merchant commences with a certain capital and gains annually at the rate of 25 p.c. At the end of 3 years he has ` 10,000. What was his original capital ? (a) 5120 (b) 5353 (c) 5456 (d) 5657 (e) 5757 29.
SOLUTIONS 1.
(d)
2000 =
P ´ 4´ 5
éæ 12.4 ö3 ù éæ 112.4 ö3 ù = 27500 êç1 + 1 ú =27500 êç ÷ – 1ú ÷ êëè 100 ø úû ëè 100 ø û
100 \ P = 10000
éæ
ù 4 ö ÷ - 1ú = 10000 × 0.0816 = 816 100 ø úû 2
Now, CI = 10000 êç1 +
êëè
1120 ´ 8.5 ´ 3
= 11200 + 2856 = 14056
2.
(a)
Amount = 11200 +
3.
(d)
In question principle and simple interests are not given.
4.
(d)
100
8730 ´ 100
Principle =
6´ 3
é112.4 ´ 112.4 ´ 11.24 - 100ù ê ´100 ´ 100 ú ú = 27500 ê 100 ´ 100 ´ 100 ê ú ê ú ë û é1420034.624 - 1000000ù = 27500 ê úû 1000000 ë
= 48500
é 420034.624 ù = 27500 ê ú ë 1000000 û
2 éæ ù 6 ö Compound Interest = 48500 êç1 + ÷ - 1ú êëè 100 ø úû
= 48500 × 0.1236 = ` 5994.60 5.
(c)
æ è
A = P ç1 +
= 4000 ´
6.
(a)
R =
r ö ÷ 100 ø
21 20
´
S.I ´ 100 P´T
éæ
CI = P êç1 +
êëè
5 ö æ = 4000 ç1 + ÷ è 100 ø
21 20
=
7. 2
= ` 4410
10230 ´ 100 27500 ´ 3
ù r ö - 1ú ÷ 100 ø úû t
= 27500 × 0.42 = ` 11550
= 12.4%p.q.
(e)
Rate per annum =
30240 ´ 100 84000 ´ 3
% = 12%
3 éæ ù 12 ö \ Compound Interest = 84000 êç1 + ÷ - 1ú êëè 100 ø úû 3 éæ ù éæ 28 ö3 ù 3 ö = 84000 êç 1 + ÷ - 1ú = 84000 êç ÷ - 1ú êëè 25 ø úû êëè 25 ø úû
é 28 ´ 28 ´ 28 ù ê -25 ´ 25 ´ 25 ú ú = 84000 é 21952 - 15625ù = 84000 ê ê ú ê 25 ´ 25 ´ 25 ú 15625 ë û ê ú ë û Buy books : http://www.dishapublication.com/entrance-exams-books/bank-exams.html
34 = 84000 ´ 8.
(a)
6327 15625
or, r 2 =
= ` 34013.95
6.5 7.0 7.5 ù é 6 + + + ú = 3375 ë100 100 100 100 û
x 100 (d)
R =
´ 27 = 3375
3375 ´ 100
x=
\
27
= ` 12500
Rate of interest =
15.
(d)
16.
(d)
It dobles in 10 yrs. Then trebles in 20 yrs. Quicker Maths :
êR = P ´ T ú = 10% 40000 ´ 3 ë û
(b)
3 x 10
é 31 ù = 40000 ê = 40 × 331 = ` 13240 ë1000 úû (d)
or,
Suppose at the rate of 12% p.a. he borrowed ` x. 36480 – 30000 =
6480 =
24 x 100
+
x ´ 12 ´ 2 100
+
(30000 – x ) ´ 10 ´ 2 100
x=
11.
(a)
R=
4
(b)
6800 ´ 100
170 00 ´ 46 41
Sum lent out at 10% =
(a)
Let the rate of interest = r % times = r years
=
= 0.25%
5
+
(7000 - x ) ´ 4 ´ 5 100
= 1600
= 1600
3 x + 14, 000 - 2 x 10
= 1600
A + r ´ 4 100
= 600 ;
Ar 25
S ´ r ´ r 100
2600 52
´ 27 = ` 1350
= 600
A ´ r ´ 6
...(1)
= 650 ;
100
é 3r ù or, A ê1 + ú = 650 ë 50 û
...(2)
Dividing (1) by (2), we have
1+
r
25 = 600 ; 3r 650 1+ 50
= ` 7889.7
\
16
2 ´ 500
Suppose the rate of interest = r % and the sum = ` A
or,
Ratio of two parts = r 2 t 2 : r 1 t 1 = 54 : 50 = 27 : 25
S
7000 – x
= 10%
17000 ´ 4
Now,
+
100
And, A +
(b)
\
2.5 ´ 100
r ù é or, A ê1 + úû = 600 25 ë
é14641–10000ù = 17000 ê úû 10000 ë
13.
\ x =
2 ´ x
x ´ 6 ´ 5
or, A +
é11´11´11´11 –10 ´10 ´10 ´10 ù = 17000 ê ú 10 ´10 ´10 ´10 ë û
12.
2.5 ´100
100
= ` 12000
10000
Times ´ Difference in rates
Now, A +
600000 – 20x
4 éæ ù éæ 11 ö4 ù 10 ö C.I. = 17000 êç 1 + - 1ú = 17000 êç ÷ - 1ú ÷ êëè 100 ø úû êëè 40 ø úû
=
2
\ x = 16000 – 14000 = ` 2000 18.
6480 × 100 = 24x + 600000 – 20x 648000 – 600000 4x = 648000 – 600000 = 48000
48000
1
= 12 %
Suppose ` x was lent at 6% per annum. Thus,
éæ 11 ö3 ù 1331 - 1000 ù = 40000 êç ÷ - 1ú = 40000 é ê ú êëè 10 ø úû ë 1000 û
16
4
Difference in Interest ×100
or, 500 = 17.
4
1
=6 %
100(2 - 1)
(d)
Sum =
t 3 éæ ù éæ ù r ö 10 ö CI = P êç1 + 1 ú = 40000 ê 1 + ÷ ç ÷ - 1ú êëè 100 ø úû êëè 100 ø úû
10.
16
14.
S.I. ´ 100ù
12 000 ´ 100 é
25
\ r =
Suppose the principle is ` x.
xê
9.
100
19.
(b)
(25 + r ) ´ 2 50 ´ 3r
(a)
=
(25 + r ) ´ 2 50 + 3r
=
12 13
12 13
or, (50 + 2r ) × 13 = (50 + 3r ) × 12 or, 650 + 26r = 600 + 36r ; or, 10r = 5 0 \ r = 5 % Afte 2 years, amount returned to Ramu = 400 +
20.
or,
400 ´ 5 ´ 2 100
= ` 440
Amount returned to Arun = 2% of ` 440 = ` 8.80 Let the sum be ` x.
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35 x ´ 8 ´ 4
\ Interest = x -
32 x 100
=
100
=
32 x 100
68 x
r ö æ + 1 = ç1 + Þ ÷ 14500 è 100 ø 4676.25
100
When interest is
68 x 100
less, the sum is ` x.
Þ
\ when interest is 340 less, the sum is
x 68 x
(a)
éæ êëè
æ è
0.1025 + 1 = ç1 +
ù 594.5 æ r ö r ö = ç1 + ÷ - 1ú = ÷ -1 100 ø úû 5800 è 100 ø 2
594.5 = 5800 êç 1+
r ö ÷ 100 ø
22.
(b)
Þ
Þ
( 100 + r )
Þ
10000
1.1025 × 10000 = (100 + 11025 = (100 + r) 2. 105 = 100 + r r = 5% Suppose principle is P
25.
(c)
10000 115 100 r
=
100
r 100
r 100
éæ êëè
100
Þ
115 - 100 100
r 100
Þ
=
115
r
=
100
100
-1
115 100
é 23 ´ 23 ´ 23 - 20´ 20´ 20 ù ú 20 ´ 20 ´ 20 ë û
= ` 8500
Compound interest = 7400 êç 1 +
r
éæ 115 ö3 ù éæ 23 ö3 ù 1 ú 8000 êç ÷ - 1ú = ÷ êëè 100 ø úû êëè 20 ø úû
=
0.1664
100
Þ 1.3225 = 1 +
3 n éæ ù éæ ù 15 ö R ö 8000 ê 1 + C. I. = P êç 1 + - 1ú = ç 100 ÷ - 1ú ÷ ø êëè úû êëè 100 ø úû
1414.40 = P [1.1664 – 1]
1414.40
= 1+
= 1+
= 8000 ê
26.
(a)
ù 27 ö - 1ú ÷ 200 ø úû
11529 é 51529 - 40000 ù = 7400 ´ ú 40000 40000 ë û
= 7400 ê
= 2132.865 = ` 2132.87
8000 8000
( 12167 - 8000) = ` 4167 éæ
CI = P êç 1 +
êëè
t
éæ
= 7850 êç 1 +
êëè
27.
(c)
éæ
CI = P êç 1 +
2
éæ
ù r ö - 1ú ÷ 100 ø úû
= 10000 êç1 + 2 éæ ù r ö ê 1 + 4676.25 = 14500 ç 100 ÷ - 1ú ø êëè úû
éæ 1.14 ö2 ù ù = 7850 êç 1 ú ÷ - 1ú ÷ 100 ø êëè 100 ø úû úû 114 ö
= 7850 [(1.14)2 – 1] = 7850 [1.2996 – 1] = 7850 [0.2996] = ` 2351.86 Compound interest accrued half-yearly. R = 20% yearly = 10% half-yearly n = 2 years = 4 half-yearly
êëè
T éæ ù r ö C. I. êç 1+ ÷ - 1ú êëè 100 ø úû
ù r ö - 1ú ÷ 100 ø úû
2
éæ 227 ö2 ù é 227 ´ 227 - 200 ´ 200 ù ÷ - 1ú = 7400 ê ú 200 200 ´ 200 ø êëè úû ë û
(c)
13225
r
= 8000 êç
= 7400 êç
24.
14500
= 1+
Þ r = 15%
r) 2.
So A = P + SI = 8500 + 1414.40 = ` 9914.40 (d)
19176.25
2 éæ ù 8 ö 1414.40 = P êç 1 + 1 ú ÷ 100 ø ëêè ûú
P=
2
r ö æ = ç1 + ÷ è 100 ø
2
t éæ ù r ö P ê 1 + ç 100 ÷ - 1ú \ Compound interest = ø êëè úû
23.
14500
2
2
1.1025 =
4676.25 ´14500
2
´100 ´ 340 = ` 500 Þ
21.
2
r ö æ = ç1 + Þ ÷ -1 14500 è 100 ø 4676.25
êëè
n
ù éæ 11 ö ù 10 ö - 1ú = 10000 êç ÷ - 1ú ÷ 100 ø úû êëè 10 ø úû 4
4
é11´ 11 ´11´ 11 - 10´ 10´ 10 ´ 10 ù ú 10 ´ 10 ´ 10 ´ 10 ë û
= 10000 ê
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36
é 4641 ù é14641- 1000 ù = 10000 ê ú = ` 4641 ú ë10000 û ë 10000 û
= 10000 ê
2 8.
( e)
2 æ R ö = 985 æ 14 ö Required difference = P ç ç ÷ ÷ è 100 ø è 100 ø
= 985 ´ 29.
(a)
196 10000
t
33.
(b)
2
or,
= 19.306
or,
4 x 25
- 57 = x
{ } 8000
34.
(a)
\ x =
19
æ è
= ` 24000
6 ö ÷ 100 ø
æ 53 ö or, 2809 = x ç ÷ è 50 ø \ x =
1 68. 54 ´ 10 0 2809
= 6%
\
25 ö ÷ 100 ø
2
r1 ö æ
r 2 ö æ r 3 ö ÷ ç1 + ÷ ç1 + ÷ ... 100 ø è 100 ø è 100 ø
11. 25 ´ 10 0
3 öæ 4 öæ 5 ö ÷ ç1 + ÷ ç1 + ÷ 100 ø è 100 ø è 100 ø
2249.52 1.03 ´ 1.04 ´ 1.05
= ` 2000
Whenever the relationship between CI and SI is asked for 3 years of time, we use the formula:
rt r éæ ù r ö 100 êç 1 + ÷ - 1ú ëè 100 ø û
´ CI
5´ 3 3 éæ ù r ö 100 êç 1 + ÷ - 1ú ëè 100 ø û
´ CI
é 9261 - 8000 ù ë 8000 úû 5´ 3
= 5%
CI =
=
150 ´ 100 ´ 1261 5 ´ 3 ´ 8000
=
1261 8
= ` 157.62
3
10000 ´ 4 ´ 4 ´ 4 5´ 5´ 5
3
150 ´100 ê
225 ´ 1 Now, since any particular number of years is not mentioned, we cannot find the sum.
æ è
(a)
= ` 2500
Difference in interest = 236.25 – 225 = ` 11.25 This difference is the simple interest over ` 225 for one year.
10000 = x ç 1 +
35.
150 =
Hence, rate of interest =
(a)
\ P=
SI =
2
53 ´ 53
2
=
\ t = 3
or, 2249.52 = P(1.03) (1.04) (1.05)
2
2809 ´ 50 ´ 50
t
t
The general formula for such q uestion is :
æ è
Difference in amounts = 2977.54 – 2809 = ` 168.54 Now, we see that ` 168.54 is the interest on ` 2809 in one year (it is either simple or compound interest because both are the same for a year).
2809 = x ç 1 +
t
where A = Amount, P = Principal and r 1, r 2, r 3 are the rates of interest for different years.
Now, for the original sum,
32.
æ 51 ö æ 51 ö =ç ÷ =ç ÷ 125000 è 50 ø è 50 ø 132651
2249.52 = P ç 1 +
Hence, rate of interest =
(c)
or,
æ è
é1280 - 1261ù úû = 57 8000
31.
æ 51 ö = ç ÷ 625000 è 50 ø 663255
A = P ç1 +
or, x ê ë
57 ´ 8000
t
or,
Hence, the time is
1261
é 4 1261 ù or, x ê = 57 ë 25 8000 úû
(d)
t
æ 51 ö = ç ÷ 625000 è 50 ø
6632.55
Let the sum be ` x. 3 ìïæ üï x ´ 4 ´ 4 5 ö Then, - 57 = x íç 1 + ÷ - 1ý 100 îïè 100 ø þï
30.
2 ö æ 6632.55 = 6250 ç 1 + ÷ è 100 ø
= ` 5120
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