If the cost price of 12 books is equal to the selling price of 8 books. what is the gain percent?
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Answer:
50%
Step-by-step explanation:
let the cost price of 1book = 1rs
cost price of 8books = 8rs
selling price of 8 books = 12rs
gain= 12-8=4
gain percent=4/8*100
=1/2*100
=50%
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