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# The capacity of glass X is 80 percent of the capacity of glass Y.

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Intern
Joined: 26 Apr 2018
Posts: 39
The capacity of glass X is 80 percent of the capacity of glass Y.  [#permalink]

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16 Sep 2018, 09:53
1
1
00:00

Difficulty:

25% (medium)

Question Stats:

79% (01:28) correct 21% (01:44) wrong based on 76 sessions

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The capacity of glass X is 80 percent of the capacity of glass Y. Glass X contains how many more ounces of punch than glass Y?

1) Glass X contains 6 ounces of punch and is half-full, while glass Y is 75% full.
2) When glass X is full, it contains 4/5 of the total capacity of Y

Source: GMAT Prep Course, Jeff Kolby
Intern
Joined: 13 Jun 2017
Posts: 18
Re: The capacity of glass X is 80 percent of the capacity of glass Y.  [#permalink]

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16 Sep 2018, 10:19
2
Given: X = (4/5)*Y, where X and Y are the capacities of glass X and Y respectively

Statement 1:

X = 12 ounces (6*2)
Therefore, Y = (5/4)*X = 15

We also know that Glass X has 6 ounces of liquid and Glass Y has 0.75*15 ounces - Sufficient

Statement 2:
This restates the given equation - Insufficient

Re: The capacity of glass X is 80 percent of the capacity of glass Y.   [#permalink] 16 Sep 2018, 10:19
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