1. Details of Withdrawals:
Shrikant withdrew ₹ 10,000 at the beginning of each quarter.
Total quarterly withdrawals = 4 quarters × ₹ 10,000 = ₹ 40,000.
2. Interest on Drawings Formula:
\[
\text{Interest on Drawings} = \text{Total Withdrawals} \times \text{Rate of Interest} \times \text{Average Time}.
\]
3. Average Time for Quarterly Withdrawals:
When withdrawals are made at the beginning of each quarter, the average time is calculated as:
\[
\text{Average Time} = \frac{12 + 9 + 6 + 3}{4 \times 12} = \frac{30}{48} = \frac{5}{8}.
\]
4. Calculation of Interest:
\[
\text{Interest on Drawings} = ₹ 40,000 \times \frac{6}{100} \times \frac{5}{8}.
\]
Simplifying:
\[
\text{Interest on Drawings} = ₹ 40,000 \times 0.06 \times 0.625 = ₹ 1,500.
\]