11. Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:
A. Rs. 1550 B. Rs. 1650
C. Rs. 1750 D. Rs. 2000
Answer: Option C
Explanation:
C.I.
|
= Rs.
|
|
4000 x
|
|
1 +
|
10
|
|
2
|
- 4000
|
|
100
|
|
|
= Rs.
|
|
4000 x
|
11
|
x
|
11
|
- 4000
|
|
10
|
10
|
|
|
= Rs. 840.
|
Sum = Rs.
|
|
420 x 100
|
|
= Rs. 1750.
|
3 x 8
|
Title :
Compound Interest Q11
Description : 11. Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% pe...
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