Question

A sum of money is given at 25% rate of interest for 2 years. The compound interest recieved is Rs. 36. What is the principal?​

Answer 1

Answer:

I think the answer is 13

Step-by-step explanation:

Answer 2

Answer: ₹64

Explanation:

In compound interest

A = P(1 + Rate)^t

We also know

A = I + P

Therefore

I + P = P(1 + R)^t

⇒ 36 + P = P(1 + 25%)²

⇒ 36 + P = P(5/4)² = 25P/16

⇒ 36 = 25P/16 - P = 9P/16

⇒ P = 36×16/9 = 64