Bose and Roy were partners in a firm sharing profits and losses in the ratio of $\displaystyle 2$:1. Bose withdrew the following amounts from the firm for personal use during the year ending $\displaystyle 31 t March, $2025$\displaystyle : (i) For the first three months, he withdrew ₹ $3,000$\displaystyle at the beginning of every month. (ii) For the remaining months, he withdrew ₹ $4,000$\displaystyle at the end of every month. Interest on drawings was to be charged @ $6$% p.a. The books of the firm are closed on 31st March every year. Calculate interest on Bose's drawings for the year ending 31st March, 2025.

Calculation of Bose’s interest on drawings: Rate of interest on drawings = $\displaystyle 6$%p.a. Interest on drawings = Total amount of drawings x Average time period x Rate/$\displaystyle 100$ $\displaystyle 12$ Average time period: For first three months = $\displaystyle 12$+$\displaystyle 10$ =$\displaystyle 11$ months $\displaystyle 2$ ………………………………… ½ For remaining nine months = $\displaystyle 8$+$\displaystyle 0$ =$\displaystyle 4$ months $\displaystyle 2$ Interest on drawings: For first three months = $\displaystyle 9,000$ x $\displaystyle 6$/$\displaystyle 100$ x11/$\displaystyle 12$ = ₹$\displaystyle 495$ ……………………. $\displaystyle 1$ For remaining nine months = $\displaystyle 36,000$ x $\displaystyle 6$/$\displaystyle 100$ x $\displaystyle 4$/$\displaystyle 12$ = ₹$\displaystyle 720$ ……………………. $\displaystyle 1$ Total interest on drawings = $\displaystyle 495$ + $\displaystyle 720$= ₹$\displaystyle 1,215$ …………………………………. ½ Alternatively, Interest on drawings = Sum of product x rate/$\displaystyle 100$ x $\displaystyle 1$/$\displaystyle 12$ Date Drawings No. of Months Product (₹) $\displaystyle 01.04.24$ $\displaystyle 3,000$ $\displaystyle 12$ $\displaystyle 36,000$ $\displaystyle 01.05.24$ $\displaystyle 3,000$ $\displaystyle 11$ $\displaystyle 33,000$ ½ $\displaystyle 01.06.24$ $\displaystyle 3,000$ $\displaystyle 10$ $\displaystyle 30,000$ $\displaystyle 31.07.24$ $\displaystyle 4,000$ $\displaystyle 8$ $\displaystyle 32,000$ $\displaystyle 31.08.24$ $\displaystyle 4,000$ $\displaystyle 7$ $\displaystyle 28,000$ $\displaystyle 30.09.24$ $\displaystyle 4,000$ $\displaystyle 6$ $\displaystyle 24,000$ $\displaystyle 31.10.24$ $\displaystyle 4,000$ $\displaystyle 5$ $\displaystyle 20,000$ $\displaystyle 30.11.24$ $\displaystyle 4,000$ $\displaystyle 4$ $\displaystyle 16,000$ $\displaystyle 1$ ½ $\displaystyle 31.12.24$ $\displaystyle 4,000$ $\displaystyle 3$ $\displaystyle 12,000$ $\displaystyle 31.01.25$ $\displaystyle 4,000$ $\displaystyle 2$ $\displaystyle 8,000$ $\displaystyle 28.02.25$ $\displaystyle 4,000$ $\displaystyle 1$ $\displaystyle 4,000$ $\displaystyle 31.03.25$ $\displaystyle 4,000$ $\displaystyle 0$ $\displaystyle 0$ $\displaystyle 2,43,000$ $\displaystyle 1$ Interest on drawings = $\displaystyle 2,43,000$ x $\displaystyle 6$/$\displaystyle 100$ x $\displaystyle 1$/$\displaystyle 12$ = ₹$\displaystyle 1,215$