Aptitude Compound Interest Test Paper 11) What is the compound interest on Rs. 2500 for 2 years at rate of interest 4% per annum?
The Correct answer is (B) Explanation: Principal (P) = Rs. 2500 Rate of interest(r) = 4% Time (t) = 2 years Compound Interest = Amount  Principal
= 2500 + C.I. = 2704  2500 = Rs. 204 2) What is the amount for a sum of money Rs.7500 at 6% rate of interest C.I. for 2 years?
The Correct answer is (A) Explanation: Principal = Rs. 7500 r = 6% t = 2 years
3) On lending a certain sum of money on C.I. one gets Rs.9050 in 2 years and Rs.9500 in 3 years. What is the rate of interest?
The Correct answer is (A) Explanation: Amount after 3 years = Rs. 9500 Amount after 2 years = Rs. 9050 Interest of one year= 9500  9050 = 450 t = 1 year Apply formula: r =
Solution 2: Quicker Method Apply formula; Rate of interest(r): Y= Rs. 9500 X = 9050
4) Ramesh borrowed Rs. 3600 at a certain rate of interest C.I. and the sum grows to Rs. 4624 in 2 years. What is the rate of interest?
The Correct answer is (B) Explanation: Principal = Rs. 3600 Amount = Rs. 4624 t = 2 years We have;
5) On a certain sum of money the compound interest Rs. 318 is earned in 2 years. If the rate of interest is 12%, what is the principal amount?
The Correct answer is (A) Explanation: We have; C.I. = Rs. 318 r = 12% t = 2 years
