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# During one day, a door-to-door brick salesman sold three fourths of hi

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Re: During one day, a door-to-door brick salesman sold three fourths of hi [#permalink]
During one day, a door-to-door brick salesman sold three fourths of his bricks for \$0.25 each. If he had 150 bricks left at the end of the day, how much money did he collect for brick sales that day?

A. \$12.50
B. \$37.50
C. \$50.00
D. \$112.50
E. \$150.00

We see that 150 bricks he had left at the end of the day must be 1/4 of all the bricks he had at the beginning of the day. Thus he had 150 x 4 = 600 bricks at the beginning of the day, and, during the day, he sold 3/4 x 600 = 450 bricks. Since each brick is \$0.25, he sold a total of 450 x 0.25 = \$112.50 worth of bricks.