A shopkeeper mixes 26, kg of wheat which cost Rs . 20 a kg with 30, kg of wheat which cost Rs.,36 a

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7.Profit and Loss

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A shopkeeper mixes $26\, kg$ of wheat which cost $Rs$. $20$ a $kg$ with $30\, kg$ of wheat which cost $Rs.\,36$ a $kg$ and sells the mixture at $Rs.\,30$ a $kg.$ Find the profit percent.

A

$5$

B

$9$

C

$12$

D

$15$

Solution

Total $CP$ of $26 kg$ wheat of one kind

$=$ Rs. $[26 \times 20]=$ $Rs. 520$

Total $CP$ of $30 kg$ another variety of wheat

$=$ Rs. $[30 \times 36]=$ $Rs. 1080$

Total $SP$ of $56 kg$ mixture $=[56 \times 30]= Rs .1680$

$\Rightarrow$ $\%$profit $=\frac{1680-(1080+520)}{1600} \times 100=5 \%$

Standard 13

Quantitative Aptitude

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