If Josh, Doug, and Brad have a total of $72 among them, and Josh has three times as much money as Brad but only three-fourths as

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问题 If Josh, Doug, and Brad have a total of $72 among them, and Josh has three times as much money as Brad but only three-fourths as much as Doug, how much money does Doug have?

选项 A、$8
B、$9
C、$27
D、$32
E、$36

答案E

解析 If Brad has B dollars, then Josh has 3B and Doug has 4B. Their combined amount of 8B equals $72; B=$72/8=$9, so Doug has $36.

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If Josh, Doug, and Brad have a total of $72 among them, and Josh has three times as much money as Brad but only three-fourths as

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