9. The cost of 1 dozen pens is Rs 240 and the cost of20 notebooks is R – InterviewSolution

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1.	9. The cost of 1 dozen pens is Rs 240 and the cost of20 notebooks is Rs 520. Find the ratio of the priceof a pen to a notebook.
Answer» cost of 12 pen is Rs 240cost of 20 notebooks is Rs 520.so , cost of 1 pen = 240÷12 = 20 cost of 1 notebook = 520÷20 = 26 therefore ratio of pen to notebook is 20:26= 10:13 ans.

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