Question

If cost price of 15 books is equal to the selling price of 20 books , calculate the loss percent

Answer 1

the answer is provided in the attachment.
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Answer 2

Loss % = 25%

Step-by-step explanation:

Given:

Cost price of 15 books = a

Selling price of 20 books = a

Loss percent = ?

Computation:

Cost price per book = a / 15

Selling price per book = a / 20

Loss = Cost price - Selling price

Loss = (a / 15) - (a / 20)

Loss = a / 60

$Loss\ percent = \frac{loss}{Cost\ price}\\\\Loss\ percent = \frac{\frac{a}{60} }{\frac{a}{15} }\\\\Loss\ percent =0.25$

Loss % = 25%

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