题目信息
A store bought 5 dozen lamps at $30 per dozen and sold them all at $15 per lamp. The profit on each lamp was what percent of its selling price?
A:20%
B:50%
C:83
%
%
D:100%
E:500%
参考答案及共享解析
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已选答案：
正确答案：
C:83%
%
Arithmetic Applied problems; Percents
For this problem it is especially important to keep your focus on what is asked and to ignore extraneous details.
The cost per lamp is
and the selling price per lamp is $15, so the profit per lamp is 
. Therefore, for each lamp the profit as a percent of the selling price is 
.
The correct answer is C.
For this problem it is especially important to keep your focus on what is asked and to ignore extraneous details.
The cost per lamp is
and the selling price per lamp is $15, so the profit per lamp is . Therefore, for each lamp the profit as a percent of the selling price is .The correct answer is C.
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