Question

4. Simple interest on a certain sum is one fourth of the sum. If the
interest rate and time period are numerically equal, find the interest
rate​

Answer 1

Assumption:

S.I. = PRT/100

ACC. To Question-

SI = 1/4 x P

Since I and T are numerically equal, that means we can substitute them as y.

Therefore-

1/4 of P = y^2/100

Answer probably isn't correct... sorry.

Just posting cause maybe it can help you get the concept of the sum.

Answer 2

MARK ME AS BRAINLIEST

THIS IS RIGHT ANSWER