If the cost price of 20 books is the same as selling price

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If the cost price of 20 books is the same as selling price of 25 books, then the loss percentage is

1. 20
2. 25
3. 22
4. 24

Correct Option: A

Let the C.P. of each book be Re. 1.
∴ Total C.P. of 25 books = Rs. 25
Their S.P. = Rs. 20
If C.P. > S.P. , then
Loss = C.P. of 25 books - S.P. of 25 books = 25 - 20 = Rs. 5

∴ Loss percent =		Loss			× 100
		C.P. of 25 books

=	5	× 100 = 20%
	25