Question

what sum of money lent at 12% per annum for 3 years produce the same interest as 2250 lent out at 10% per annum for 4 years

Answer 1

2250 is lent so for Now P = rs 2250
R = 10%
T = 4years
I = PRT/100
  = 2250 * 10 * 4/100
  = Rs 900

Interest is same when R = 12%,T = 3years,P = x
I = PRT/100
900 = x*12*3/100
x = 900 * 100
      ------------
         12 * 3
x = Rs 2500

Sum of Money = Rs 2500