Rs.1000 is invested at 5 % p.a simple interest if the interest is added to the

Question

Rs.1000 is invested at 5 % p.a simple interest if the interest is added to the principle after every 10 years. The amount will become Rs. 2000 After

Options:

A . 15 years

B . 16 2/3 years

C . 18 years

D . 20 Years

Answer: Option B

S. I for 10 Years = Rs (1000 Ã— 5/100 Ã— 10) = Rs 500
Principle after 10 Years becomes = Rs (1000 + 500)
= Rs 1500
S. I on it = Rs (2000 - 1500) = Rs 500
Time = (50000/7500) Years = 6 2/3 Years
Total Time = (10 + 6 2/3) Years = 16 2/3 Years

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