Question

the cost price of 15 copy of a book is equal to the selling price of 10 copies of the book find the profit or loss percent of the dealer​

Answer 1

Answer:

Let the C.P of 1 copy be x

Then, the C.P of 10 copy =10x

A.T.Q,

S.P of 10 copy=C.P of 15 copy=15x

Profit=S.P-C.P=15x-10x=5x

Profit%=5x/10x ×100=50%.

Answer 2

Answer:

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