Question

Oranges are bought at 11 for a rupee and equal
number more at 9 for a rupee. If they are sold at
10 for a rupee what is the gain or loss percent?
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Answer 1

Answer:

There is no gain or loss, if they are sold 10 oranges for a rupee.

Given:

Oranges are bought at 11 for a rupee and equal number more at 9 for a rupee.

To find:

If they are sold at 10 for a rupee what is the gain or loss percent?

Solution:  

Taking the average of 11 and 9,

11 + $\frac{9}{2}$

$= \frac{20}{2}$ = 10

Since, they are sold for 10, there is no gain or loss.