Discussion

Explanation:

In C.I., amount increases by R% every year.

∴ 61,455 – 57,840 = 3,615

Now, 3,615 is the interest on Rs. 57,840

∴ Rate $=\frac{3,615\times 100}{57,840\times 1}= 6\frac{1}{4}\%$

Hence, option (d).

» Your doubt will be displayed only after approval.