Question

100
88
(d)
188
A sells an article to B at a profit of 10%. B sells the article back to A at a loss of 10%. In this
transaction​

Answer 1

Step-by-step explanation:

First Method

Let CP was 100 for A originally

A sells article to B at 10% profit,

CP for B = 100 + 10% of 100 = 110

Now, B sells it A again with loss 10%

Now, CP for A this time = 110 - 10% of 110 = 99

A makes Profit = 110 - 99 = 11

%profit for A =

11×100

100

= 11%

Second Method

It could be easily shown by net percentage change graphic.

100(A) == 10%(Profit) ⇒110(B) == 10%(Loss) ⇒ 99(A)

In this transaction A makes a profit of (110 - 99 = 11%) 11%