Question

by selling an article for rs 138 a shopkeeper gains 15% . what is the cost price of article​

Answer 1

Given,

1. SP= ₹138
2. G%=15%

To find:-

• CP =?

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Solution:-

We know,

CP=100/100+G ×SP

$CP= \frac{ 100}{100+G }×SP \\ \sf = > CP= \frac{ 100}{100+15 }×138 \\ = > CP= \frac{ 100}{115 }×138 \\ = > CP= \frac{ 20}{23 }×138 \\ \sf \: = > CP=20 \times 6 \\ \sf \: = > CP= 120$

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Final Answer:-

• CP=₹120