Question

The simple interest on a sum of money is 1/4th of the principal and the number of years is equal to rate per cent per annum. Find the rate per cent.

।। *kindly check/match your answer with the photo given above and give a solution with explanation for brainliest mark*।।​

Answer 1

Step-by-step explanation:

let us consider that the sum is 100 RS

now => we get 1/4 interest means

=> 100/4 = 25 RS

=> here si = 25 RS and principal is 100 RS

=> it is given that time and rate are same so X,x

=> SI = p×r×t/100

=> 25 = 100×X×X/100

=> 25 = x²

=> x = 5

so rate is 5% and time is also 5 years

11.5% is not right answer according to me