Find the ratio of the price of a pencil to that of a ball pen if pencils cost rupees 96 per score and ball pen cost rupees 50.40 per dozen
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The cost of one dozen pencil is Rs96
so the cost of a pencil=96/12
=12
The cost of one dozen pens is Rs50. 40
so the cost of a pen = 50. 40/12
=4.20
the ratio=12/4.20
=3/1.05
=1/0.35
=100/35
=20/7
=20: 7
so the cost of a pencil=96/12
=12
The cost of one dozen pens is Rs50. 40
so the cost of a pen = 50. 40/12
=4.20
the ratio=12/4.20
=3/1.05
=1/0.35
=100/35
=20/7
=20: 7
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