If Ram purchased 15 mangoes in Rs. 10 and sold them 10 mangoes in Rs. 15 . Find the gain or loss percent.
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If Ram purchased 15 mangoes in Rs. 10 and sold them 10 mangoes in Rs. 15 . Find the gain or loss percent.
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Solution

Ist Method :

C.P. of 1 mango $=$ Rs. $\frac{10}{15}=$ Rs. $\frac{2}{3}$

S.P. of 1 mango $=$ Rs. $\frac{15}{10}=$ Rs. $\frac{3}{2}$

$\because \quad$ S.P. $>$ C.P.

$\therefore \quad$ Gain $\%=\frac{\frac{3}{2}-\frac{2}{3}}{\frac{2}{3}} \times 100 \%$

$=\frac{5}{6} \times \frac{3}{2} \times 100 \%$

$$

\begin{array}{l}

=\frac{500}{4} \% \\

=125 \% ; \text { Ans. }

\end{array}

$$

2nd Method :

Let the total no. of mangoes bought, be $15 \times 10=150$

C.P. $=150 \times \frac{10}{15}=$ Rs. 100

and S.P. $=\frac{150 \times 15}{10}=$ Rs. 225

$\therefore$ gain $\%=\frac{225-100}{100} \times 100 \%$

$=125 \%$; Ans.

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