1.

A man purchased some books at 4 for 39 and sold them at 3 for 42, thereby gaining 51.How many books did he purchase?​

Answer»

Answer:

frist you find the SELLING PRICE of A books equal to 56 then you seporate it from the cost price you will get 3 then multiply from 4 then you will get 12 so a MAN has purchased 12 books



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