Question

A book was bought for ₹105.oo is sold at a gain of 20%.Find the selling price.

Answer 1

cost price of a book is 105 rupees
20% of 105 =105×20/100


=21₹


selling price of a book = gain + cost price
= 21+105
=126₹


the selling price of a book is 126 ₹




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Answer 2

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Given,

CP = ₹ 105

Gain % = 20%

To find SP

We know that

$\mathsf{SP = \frac{(100 + Gain\%)}{100} \times CP} \\ \\ \: \: \: \: \: \mathsf{= Rs \: \:[ \frac{(100 + 20)}{100} \times 105}] \\ \\ \: \: \: \: \: \mathsf{= Rs \: \: ( \frac{120}{100} \times 105)} \\ \\ \: \: \: \: \: \mathsf{= Rs \: \: 126}$

•°• The selling price of the book ₹ is 126.

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