Sonal buys mangoes at rate of 3 ,kgs for Rs . 21 and sells them at 5 kgs for Rs. 50 . To earn a prof

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7.Profit and Loss

hard

Sonal buys mangoes at the rate of $3 \,kgs$ for $Rs$. $21$ and sells them at $5$ $kgs$ for $Rs.$ $50 .$ To earn a profit of $Rs.\,102,$ he must sell how many mangoes in $kgs$?

A

$34$

B

$52$

C

$26$

D

$32$

Solution

$CP$ of each kg mango $=$ $Rs.$ $\frac{21}{3}=$ $Rs. 7$

$SP$ of each $kg$ mango $= Rs . \frac{50}{5}= Rs .10$

Profit $= SP – CP = Rs .3$

Here, Rs. 3 is profit earned for $1\, kg$

Similarly, $Rs.\, 102$ is profit earned for:

$=\frac{1}{3} \times 102=34 kg$

Standard 13

Quantitative Aptitude

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