Question

Sunita invested Rs. 12,000 on simple interest at the rate of 10% p.a. to obtain a total amount of Rs. 20,400 after a certain period. For how many years did she invest to obtain the above amount?

• A. 9
• B. 6
• C. 7
• D. 8

Answer 1

Answer:

C. 7

A = P + SI 20400 = 12000 + SI SI = 20400 – 12000 = 8400 SI = (P × R × T)/100 8400 = (12000 × 10 × T)/100 8400 = 1200 × T T = 8400/1200 = 7 years