If the selling price of 40 books equal to the cost price of 30 books, what is the loss percentage?
Anonymous:
I think your question is incomplete
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Let the S.p of 40 books be x.
cost price of 30 books be y
According to the sum,
s.p.of 40 books= loss of 30 books
cost price of 30 books be y
According to the sum,
s.p.of 40 books= loss of 30 books
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