(a) Calculate the following ratios for each of X Ltd and Y Ltd: (i) Gross Profit Margin; (ii) Net Profit Margin; (iii) Expense/Income ratio; (iv) Return on capital employed; (v) Current ratio; (vi) Quick ratio; (vii) Stock Turnover; (viii) Debtors Collection Period (in months); Creditors Payment Period (in months). (ix) (b) Based on your answers in (a) above; state which company appears to be the more efficient and better performed in terms of profitability and liquidity management