This document contains 3 problems related to ratio analysis with solutions. Problem 1 calculates various revenue ratios like gross profit ratio, expenses ratio, operating ratio, net profit ratio, and stock turnover ratio for a trading company. Problem 2 calculates current ratio, quick ratio, debt-equity ratio, and proprietary ratio from a company's balance sheet. Problem 3 calculates 10 different ratios including gross profit ratio, stock turnover ratio, operating ratio, current ratio, and debtors/creditors ratio for another company based on income statement and balance sheet information provided.