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Aptitude Compound Interest Test Paper 26) The simple interest on a certain sum of money at rate of interest 5% per annum for 2 years is Rs. 500. What is the compound interest on the same sum for the same period and at the same rate of interest?
The Correct answer is (D) Explanation: S.I. = 500 r = 5% t = 2 years Before finding C.I. we have to find the sum or principal; Apply formula; Principal = Now we have to find the Amount; Apply formula; Amount = Amount = 5000
= 5000 * 1.05 * 1.05 = Rs. 5512.5 C.I. = Amount - Principal C.I. = 5512.5 - 5000 = Rs. 512.5 (Option D) 7) In how many years the compound interest on Rs. 10000 at the rate of 10% will be Rs. 2100 ?
The Correct answer is (B) Explanation: Principal = Rs. 10000 r = 10% C.I. = Rs. 2100
8) The difference between Simple Interest and Compound Interest on a certain sum of money for 2 years is Rs.200. If the rate of interest is 12
The Correct answer is (C) Explanation: If the difference between the C.I. and S.I. on a certain sum of money for 2 years at rate of interest r % is Rs. X, then the sum is given by; Sum = X We have; X = Rs. 200 t = 2 years r = 12 = 200 * = 200 * = 200 * 64 = Rs. 12800 (Option C) 9) If the difference between Simple Interest and Compound Interest on a sum of money for 3 years is Rs. 200 and the rate of interest is 10%, what is the sum?
The Correct answer is (A) Explanation: If the difference between C.I. and S.I. on a certain sum for 3 years at rate of interest r% is Rs. X, then the sum is given by; Sum = We have; X = Rs. 200 r = 10% 
10) The difference between simple interest and compound interest on a sum of money for 1 year at 4% per 6 months is 4, what is the sum?
The Correct answer is (C) Explanation: Let the sum = Rs. X t = 1 year = 2 half years (6 months) r = 4% for 6 months
Compound Interest Aptitude Test Paper 1 Compound Interest Concept |
= Rs. 5000 
%, what is the sum?
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