Answers

2015-10-09T20:31:04+05:30
First off Rs.112.50 is for 15 articles. This means C.P of one article is:
\frac{Rs.112.50}{15}=Rs.7.5.
Then he sells them at Rs.108 for every dozen. This means S.P of one article is:
\frac{Rs.108}{12}=Rs.9

The formula for profit is S.P.-C.P..
We have to just subtract those two numbers now:

P=S.P.-C.P.
P=9-7.5
P=1.5

Ans=Rs. 1.5


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