Interest on Rhea’s drawings is calculated as follows: - Rhea withdrew ₹ 30,000 at the commencement of each half-yearly period. - The initial withdrawal of ₹ 30,000, made at the start of the first half-year, remained in the firm for 12 months, resulting in interest calculated as: \[Interest} = \frac{30,000 \times 10\% \times 12}{12} = ₹ 3,000\] - The subsequent withdrawal of ₹ 30,000, made at the start of the second half-year, remained in the firm for 6 months, yielding interest of: \[Interest} = \frac{30,000 \times 10\% \times 6}{12} = ₹ 1,500\] Consequently, the aggregate interest on Rhea's drawings amounts to: \[3,000 + 1,500 = ₹ 4,500.\]