Compound Interest - Questions & Answers | Exam2Win

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26. The difference of compound interests on Rs. 800 for 1 year at 20% per annum when compounded half yearly and quarterly is:

A. Nil

B. 2.50

C. 4.40

D. 6.60

Explanation: ANSWER : Rs. 4.40

27. The compound interest on Rs. 2800 for 1 ï¿½ years at 10% per annum, is:

A. Rs. 441.35

B. Rs. 436.75

C. Rs. 434

D. Rs. 420

Explanation: ANSWER : Rs. 434

28. A sum of money placed of C.T. doubles itself in 5 years. It will amount to eight times itself in:

A. 15 years

B. 20 years

C. 12 years

D. 10 years

Explanation: ANSWER : 15 years

29. What is the principal amount which earns Rs. 132 as compound interest for the second year at 10% per annum?

A. Rs. 1000

B. Rs. 1200

C. RS. 1320

D. none of these

Explanation: ANSWER : Rs. 1200

30. The least number of complete years in which a sum of money put and at 20% C.I. will be more than doubles is:

A. 3

B. 4

C. 5

D. 6

Explanation: ANSWER : 4