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By increasing the price of book by rs 10 a person can buy 10 less books for rs1200. Find the original price of book??

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by Kran

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by Kran

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now price of a book is= x+10

price of ten books= 1200= (x+10)10

1200=10x+100

1100=10x

x=110 rs

orginal price of a book=110 rs