7 pens and 7 inkpots cost Rs. 122.30. if the cost of one pen is Rs. 4.60,find the cost of one inkpot
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Step-by-step explanation:
let the cost of each inkpot = x
cost of each pen = Rs. 4.60
cost of 7 pens = 7*4.60= 32.20
cost of 7 inkpots = 122.30-32.20=90.1
cost of each inkpot = 90.1/7 =Rs. 12.87
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