If $10 \%$ be lost by selling an article in Rs. $22 \cdot 50$, then how much it should have been sold to gain $10 \%$ ?
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If $10 \%$ be lost by selling an article in Rs. $22 \cdot 50$, then how much it should have been sold to gain $10 \%$ ?
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Solution-

$(100-10)$ or $90 \%$ of the C.P.

$

=\text { Rs. } 22 \cdot 50=\text { Rs. } \frac{45}{2}

$

$

\begin{array}{c}

\therefore \quad 1 \% \text { of the C.P. }=\text { Rs. } \frac{45}{2 \times 90} \\

=\text { Rs. } \frac{1}{4} \\

\therefore \quad(100+10) \text { or } 110 \% \text { of the C.P. } \\

=\text { Rs. } \frac{1}{4} \times 110=\text { Rs. } 27.50 ; \text { Ans. }

\end{array}

$

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