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If x, y, and z are positive integers with the ratio 2 : 4 : 6, what is

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Joined: 02 Sep 2009
Posts: 46335
If x, y, and z are positive integers with the ratio 2 : 4 : 6, what is [#permalink]

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New post 20 Apr 2017, 23:35
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

76% (00:48) correct 24% (00:34) wrong based on 75 sessions

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Intern
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B
Joined: 16 Nov 2016
Posts: 30
Location: India
Concentration: Finance, International Business
GPA: 3.78
WE: Accounting (Accounting)
Re: If x, y, and z are positive integers with the ratio 2 : 4 : 6, what is [#permalink]

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New post 21 Apr 2017, 00:04
The answer is D because using the concept of unknown multiplier we can find the values
From statement 1 : x+y+z=60
x:y:z=2a:4a:6a=10a
therefore 12a=60
a=5 so 2a=x=2*5=10

From statement 2: y+z=50 we get 4a+6a= 10a=50
a=5
Therefore 2*5=10
So answer is D
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Re: If x, y, and z are positive integers with the ratio 2 : 4 : 6, what is [#permalink]

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New post 21 Apr 2017, 03:00
x= 2a
y=4a
z=6a

Both statements are sufficient on their own as we get a unique value for x.
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Re: If x, y, and z are positive integers with the ratio 2 : 4 : 6, what is   [#permalink] 21 Apr 2017, 03:00
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If x, y, and z are positive integers with the ratio 2 : 4 : 6, what is

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