A fruit vendor buys 10 bananas for Rs., 14 and sells them at 12 for Rs.,15 . Find his percentage gai

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7.Profit and Loss

hard

A fruit vendor buys $10$ bananas for $Rs.\, 14$ and sells them at $12$ for $Rs.\,15$. Find his percentage gain or loss.

A

$10 \frac{5}{7} \%$ loss

B

$10 \frac{5}{9} \%$ gain

C

$9 \%$ gain

D

None of these

Solution

$\%$ gain or $\operatorname{loss}=\left(\frac{x w}{z y}-1\right) \times 100 \%$

$=\left(\frac{10 \times 15}{12 \times 14}-1\right) \times 100 \%$

$=\left(\frac{150}{168}-1\right) \times 100 \%$

$=-\frac{18}{168} \times 100 \%=-10 \frac{5}{7} \%$

since the sign is $-ve,$ since there is a loss of $10 \frac{5}{7} \%$

Standard 13

Quantitative Aptitude

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