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A Student Buys a Pen for Rs 90 and Sells It for Rs 100. Find His Gain and Gain Percent. - Mathematics

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Question

A student buys a pen for Rs 90 and sells it for Rs 100. Find his gain and gain percent.

Answer in Brief
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Solution

\[\text { C . P of pen = Rs } . 90\]

\[\text { S . P of pen = Rs . }100\]

Gain = SP - CP

Gain = 100 - 90

= Rs . 10

\[\text { Gain %} = \left( \frac{\text { gain } \times 100}{C . P .} \right)\]

\[ = \left( \frac{10 \times 100}{90} \right)\]

\[ = 11\frac{1}{9}\]%

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Chapter 13: Proft, Loss, Discount and Value Added Tax (VAT) - Exercise 13.1 [Page 11]

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RD Sharma Mathematics [English] Class 8
Chapter 13 Proft, Loss, Discount and Value Added Tax (VAT)
Exercise 13.1 | Q 1 | Page 11

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