A company sells crushed rock in 16-pound bags each bag containing a mixture of quartz to marble is the same for every bag. If 3 bags of crushed rock containa total of 27 pounds of quartz and 21 pounds of marble, how many bags contain 72 pounds of quartz and 52 pounds of marble

Question

Mathematics

Felipe

1 February, 06:15

A company sells crushed rock in 16-pound bags each bag containing a mixture of quartz to marble is the same for every bag. If 3 bags of crushed rock containa total of 27 pounds of quartz and 21 pounds of marble, how many bags contain 72 pounds of quartz and 52 pounds of marble

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Answers (1)

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Cristina Sparks · Answer 1

8 bags.

Step-by-step explanation:

Each bag will contain 27/3 = 9 pounds of quartz and 21/3 = 7 pounds of marble.

So there are 72 / 9 = 8 bags which contain 72 pounds of quartz. They will contain 56 pounds of marble, not 52 pounds.