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Question
Cost of a dozen pens is ₹ 180 and cost of 8 ball pens is ₹ 56. Find the ratio of the cost of a pen to the cost of a ball pen.
Solution
Cost of a dozen pens = ₹ 180
Cost of 1 pen = `180/12` = ₹ 15
Cost of 8 ball pens = ₹ 56
Cost of a ball pen = `56/8` = ₹ 7
Required ratio = `15/7`
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