Question

The cost price of 10 articles is equal to the selling price of 9 articles. Find the profit or loss percent.
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Answer 1

Answer:

11.11%

Step-by-step explanation:

Let the C.P. of one article be 1 Rs.

C.P. of 10 articles = 10*1 = 10 Rs

C.P. of 9 articles = 9*1 = 9 Rs.

According to the statement:-

C P. of 10 articles = S.P. of 9 articles

10 Rs = 10 Rs.

Profit= S.P. - C.P.

= 10 Rs - 9 Rs

= 1 Rs.

Profit % = 1 Rs*100 / 9 Rs.

On solving we get, 11.11%

Hope it helps.

Have a good day:)

Answer 2

Step-by-step explanation:

CP of 1 article is x.

CP of 10 articles is 10x=SP of 9 articles.

CP of 9 articles =9x

Profit=SP−CP

=10x−9x=x

Profit(%)=

CP

profit

×100

=

9x

x

×100

=

9

100

=11

9

1

%