Question

The compound interest on a certain sum for 2 years at 10% per annum is rs. 525.The simple interest on the same sum for double the time at half the ratepercent per annum is:

Answer 1

Correct answer 500

At rate of interest 10 ℅ ci is 21 % of total sum .

So 21℅= 525

1℅= 25

100%=2500

According to question time will double and rate of interest will half of itself so Si = 2500×5×4/100 =500