Profitability in terms of return on capital can be improved through changes in the size of current assets. Thus, if the size of fixed assets is Rs 20,00,000, the size of current assets is Rs 30,00,000...

Profitability in terms of return on capital can be improved through changes in the size of current assets. Thus, if the size of fixed assets is Rs 20,00,000, the size of current assets is Rs 30,00,000 and the earning before tax is Rs 9,00,000, how far can the current assets be reduced to raise profitability to 20%?