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# A number x is 8 times another number y. The percentage that

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Manager
Status: Working hard to score better on GMAT
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Concentration: Finance, Entrepreneurship
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A number x is 8 times another number y. The percentage that  [#permalink]

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26 May 2013, 08:49
1
3
00:00

Difficulty:

25% (medium)

Question Stats:

75% (01:15) correct 25% (01:10) wrong based on 121 sessions

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A number x is 8 times another number y. The percentage that y is less than x is

A. 12.5%
B. 87.5%
C. 80%
D. 11%
E. 1%

Wording is too confusing.....How to interpret this? someone shed some light.

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Math Expert
Joined: 02 Sep 2009
Posts: 50578
Re: A number x is 8 times another number y. The percentage that  [#permalink]

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26 May 2013, 08:57
1
1
atalpanditgmat wrote:
A number x is 8 times another number y. The percentage that y is less than x is

A. 12.5%
B. 87.5%
C. 80%
D. 11%
E. 1%

Wording is too confusing.....How to interpret this? someone shed some light.

Say y=1 and x=8.

Then y=1 is less than x=8 by (8-1)/8*100=7/8*100=87.5%.

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A number x is 8 times another number y. The percentage that  [#permalink]

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14 Oct 2014, 02:06

For $$y = \frac{1}{8}, x = 1$$

$$(1 - \frac{1}{8}) * 100 = \frac{7}{8} * 100 = 87.5%$$
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Director
Joined: 23 Jan 2013
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Re: A number x is 8 times another number y. The percentage that  [#permalink]

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08 Feb 2015, 22:00
x=8
y=1

the percentage y of x is 1/8*100=100/8

the difference in percentage is 100-100/8=700/8=87.5

B

intuitively C is too simple, other unrealistic, so B fits
Intern
Joined: 28 Apr 2018
Posts: 10
A number x is 8 times another number y. The percentage that  [#permalink]

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23 Sep 2018, 10:01
Let's say "y" is a specific number,and "x" is 8 times y
i.e.
y
x=8y

The percentage that y is less than x is : (8y -y)/8y = 87.5%
A number x is 8 times another number y. The percentage that &nbs [#permalink] 23 Sep 2018, 10:01
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