Question

11 oranges are bought for Rs 10 and 10 oranges are sold for Rs. 11. The gain / loss percent is

• A. $21\%$ loss
• B. $11\%$ gain
• C. $21\%$ gain
• D. $11\%$ loss

Answer 1

The correct option is C $21\%$ gain

C.P pf 11 oranges = Rs 10
$\therefore$ C.P pf 1 orange = Rs $\left(\frac{10}{11}\right)$
Also, S.P of 10 oranges = Rs 11
$\therefore$ S.P of 1 orange = Rs $\left(\frac{11}{10}\right)$
Now, profit = S.P .- C.P.= $\frac{11}{10}-\frac{10}{11}=Rs\frac{21}{110}$
$\therefore$ Profit % = $\frac{\frac{21}{110}}{\frac{10}{11}}\times 100=21\%$