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When 12 marbles are added to a rectangular aquarium, the wat
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17 Apr 2020, 10:50
17 Apr 2020, 10:50
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90% (01:01) correct
9% (03:25) wrong based on 33 sessions
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When 12 marbles are added to a rectangular aquarium, the water in the aquarium rises 1 1/2 inches. In total, how many marbles must be added to the aquarium to raise the water 2 3/4 inches?
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22
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When 12 marbles are added to a rectangular aquarium, the wat
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17 Apr 2020, 11:04
17 Apr 2020, 11:04
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Carcass wrote:
When 12 marbles are added to a rectangular aquarium, the water in the aquarium rises 1 1/2 inches. In total, how many marbles must be added to the aquarium to raise the water 2 3/4 inches?
Show: :: OA
22
We can solve this question using equivalent ratios
We'll use the ratio: #of marbles/rise (in inches)
Let x = the number of marbles required to raise the water 2 3/4 inches (aka 2.75 inches).
We can write: 12/1.5 = x/2.75
Cross multiply to get: (1.5)(x) = (12)(2.75)
Simplify: 1.5x = 33
Solve: x = 33/1.5 = 22
Answer: 22
Cheers,
Brent
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Re: When 12 marbles are added to a rectangular aquarium, the wat
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12 Jul 2023, 02:30
12 Jul 2023, 02:30
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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