Question

5 2 packets of 12 pencil each Rs 499.20 find the cost of 65 packets of 1 0 pencil each

Answer 1

52 packets with 12 pencils each,cost Rs 499.20.find the cost of 65 packets of 10 pencils each.

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52 packets of 12 pencils each is 52×12 or 624 pencils

So if Rs 499.20 is the price of 624 pencils, then 1 pencil costs

499.20 ÷ 624, or Rs 0.80.

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65 packets of 10 pencils each is 65×10 or 650 pencils

So since 1 pencil costs Rs 0.80, then 650 pencils costs 650×0.80 or Rs 520. 

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