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Question

Find the S.P. when
(i) $$C.P. = Rs. 20;gain = 10\% $$


A
Rs12
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B
Rs22
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C
Rs42
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D
None of these
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Solution

The correct option is B Rs$$22$$

Given data,

$$ C.P=Rs.\,20 $$

$$ Gain=10% $$

 

We know that

$$Gain\ (\%) =\dfrac{S.P-C.P}{C.P}\times 100$$

$$ 10=\dfrac{S.P-20}{20}\times 100 $$

$$ 10=\left( S.P-20 \right)\times 5 $$

$$ S.P-20=2 $$

$$ S.P=Rs.\,22 $$

 

Hence, this is the answer.


Mathematics

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