cost of one and half dozenof pens is Rs. 180 and cost of 9 pencils is Rs. 81. Then find the ratio of a pen to a pencil
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one and half dozen means 18 pens
so 18 pens cost 180 rupees.
18=180
1 pen will be 10 rupees
9 pencils=81
1 pencil will be 9 rupees
ratio=cost of 1 pen/cost of 1 pencil
=10:9 answer
so 18 pens cost 180 rupees.
18=180
1 pen will be 10 rupees
9 pencils=81
1 pencil will be 9 rupees
ratio=cost of 1 pen/cost of 1 pencil
=10:9 answer
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