The difference between interest received by A and B is Rs. 36 on Rs. 2400 for 4 year. What is the difference in rate of interest?

To solve this problem, we need to use the formula for simple interest which is I = PRT/100, where I is the interest, P is the principal amount, R is the rate of interest, and T is the time.

Here, the difference in interest received by A and B is Rs. 36. This is for a principal amount of Rs. 2400 for 4 years. We need to find the difference in the rate of interest.

Let's denote the rate of interest for A as Ra and for B as Rb. The difference in the rate of interest is Ra - Rb.

We know that the difference in interest is Rs. 36, so we can set up the equation as follows:

2400 * 4 * (Ra - Rb) / 100 = 36

Solving this equation for (Ra - Rb), we get:

(Ra - Rb) = 36 * 100 / (2400 * 4)

(Ra - Rb) = 0.375

So, the difference in the rate of interest is 0.375%.