Question

A sum of Rs. 2000 amounts to Rs. 4000 in two years at compound interest. In how many years does the same amount becomes Rs. 8000.

A) 2 B) 4 C) 6 D) 8

Answer 1

Answer:

2years dose the same amount becomes Rs(8000).

Answer 2

2000 to 4000(is 2times, 2years)

2times is2×2 ➡ 2 year

(2000to 4000) 2×2 is 4 times ➡ (2) ^2 = 4 years

so the answer is B) 4

(2^2 is 2 to the power)

I hope this will help you