A person sells 10 article for what he paid for 11.find his profit per cent sales?
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Answer:
Explanation:
C.P. of 11 articles = Rs. 10, C.P. of 1 article = Rs.
11
10
S.P. of 10 articles = Rs. 11
⇒ S.P. of 1 article = Rs.
10
11
∴ Profit %
11
10
10
11
−
11
10
×100=
11
10
110
121−100
×100
=
110×10
21×11
×100=21%
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