Calculate interest on the drawings of Mahesh @ 5% p.a. for the year ended 31st March 2023 in each of the following alternatives cases:

Calculate interest on the drawings of Mahesh @ 5% p.a. for the year ended 31st March 2023 in each of the following alternatives cases:

(i) If he withdrew ₹ 12,000 in the beginning of each quarter.

(ii) If he withdrew ₹ 12,000 at the end of each quarter.

(iii) if he withdrew ₹ 18,000 during the middle of each quarter.