Alex, Benn and Cole were partners in a firm sharing profits and losses in the ratio of 5:3:2. They admitted Dona as a new partner for \( \frac{1}{5} \) share in the future profits. Dona agreed to contribute proportionate capital. On the date of admission, capitals of Alex, Benn and Cole after all adjustments were Rs. 1,20,000; Rs. 80,000 and Rs. 1,00,000 respectively. The amount of capital brought in by Dona will be: