Bill plans a profit of 10% on the selling prices of an article. If his expenses, excluding the cost of article, are 15% of sales, what should his rate of mark up on the costs be?
A. 20%
B. 25%
C. 30%
D. 33 1/3 %
E. 33 2/3 %![]()
A. 20%
B. 25%
C. 30%
D. 33 1/3 %
E. 33 2/3 %