What sum of money must be given at simple interest for 5 months at 3% per annum in order to earn Rs. 260 interest?
Let the sum of money be Rs. P. SI = Rs. 260, T = 3/7 year and R = 3% SI = (P × R × T)/100 ⇒ 260 = P × (3/100) × (3/7) ⇒ P = Rs. 20800
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