Question : Kapil sells a mobile to Sachin at a gain of 15% and Sachin again sells it to Rohit at a profit of 12%. If Rohit pays Rs. 322, what is the cost price of the mobile for Kapil?
Option 1: Rs. 350
Option 2: Rs. 450
Option 3: Rs. 250
Option 4: Rs. 325
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Correct Answer: Rs. 250
Solution :
Let the cost price of the mobile for Kapil be Rs. $x$.
According to the question,
$x×\frac{100+15}{100}×\frac{100+12}{100}=322$
$⇒x×\frac{115}{100}×\frac{112}{100}=322$
$\therefore x =250$
Hence, the correct answer is Rs. 250.
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