What sum of money must be given at simple interest for 5 months at 4% per annum in order to earn Rs. 200 interest?
Let the sum of money be Rs. P. SI = Rs. 200, T = 5/12 year and R = 4% SI = (P × R × T)/100 ⇒ 200 = P × (4/100) × (5/12) ⇒ P = Rs. 12000