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:
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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
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