The difference in compound interest and simple interest on a certain amount at 10% per annum at the end of the third year is ₹620. What is the principal amount?
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Difference between CI and SI =
1003Pr2(300+r)
⇒620=1003P×100×(300+10)=1003100P(310)
⇒620=10000P(310)⇒P=Rs.20,000
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