Calculate the Rate of interest on Drawings of Mohan in the following cases:

Calculate the Rate of interest on Drawings of Mohan in the following cases:

a) If he withdrew ₹ 6,000 in the beginning of each quarter for the year ended 31st March 2023 and interest on drawings is ₹ 1,500.

b) If he withdrew ₹ 6,000 at the end of each quarter for the year ended 31st March 2023 and interest on drawings is ₹ 900.

c) If he withdrew ₹ 6,000 per quarter for the year ended 31st March 2023 and interest on drawings is ₹ 1,200.

[Ans: a) 10%; b) 10% and c) 10%]