A man buys a dozen cameras for $1800. He sells them at a profit of $36 each. Find his profit as a percentage of the selling price.

 Aman buys a dozen cameras for $1800. He sells them at a
profit of $36 each. Find his profit as a percentage of the selling
price.

Buying price of one camera=
1800/12

=150 $

Selling price
of one camera=
150+36

=186

Selling price $
186   then profit   = $36

If selling price $100 then
profit=(36 x
100)/186

=19.35

 Profit
as a percentage of the selling price=19.35