1.
Study the following table and answer the questions that follow. “Graph”The incomes of companies X and Y in 2010 were in the ratio of 3 : 4 respectively. What was the respective ratio of their expenditures in 2010 ?
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By: anil on 05 May 2019 01.35 am
In 2010, let the income of company X = 3z Income of company Y = 4z Let expenditure of company X = x Expenditure of company Y = y => Profit of company X = 3z - x => Profit % of company X = 65% => 65/100 = (3z - x)/x => x = 60z/33 Profit of company Y = 4z - y => Profit % of company Y = 50% => 1/2 = (4z - y)/y => y = 8z/3 To find : x/y =>x/y = 60z/33 * 3/8z = 15:22
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