Find the ratio of the price of a pencil to that of a ball pen if pencil cost Rs 96 per score and ball pens cost Rs 50.40 per dozen.
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Step-by-step explanation:
1 score = 20
the price of 20 pencils is rs.96
the price of 1pencil 96/20 =24/5=24:5
1 dozen=12
the price of 12 ball pen is rs.50.40
the price of 1ball pen is 50.40/12*100 =42000
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