1. Withdrawal Summary: Shrikant's quarterly withdrawals amounted to ₹ 10,000 each, totaling ₹ 40,000 annually (4 quarters × ₹ 10,000).
2. Interest on Drawings Formula: The formula for calculating interest on drawings is:
\[
\text{Interest on Drawings} = \text{Total Withdrawals} \times \text{Rate of Interest} \times \text{Average Time}.
\]
3. Average Time Calculation: For withdrawals made at the start of each quarter, the average time is determined as:
\[
\text{Average Time} = \frac{12 + 9 + 6 + 3}{4 \times 12} = \frac{30}{48} = \frac{5}{8}.
\]
4. Interest Calculation: The interest on drawings is calculated as:
\[
\text{Interest on Drawings} = ₹ 40,000 \times \frac{6}{100} \times \frac{5}{8}.
\]
Simplified:
\[
\text{Interest on Drawings} = ₹ 40,000 \times 0.06 \times 0.625 = ₹ 1,500.
\]