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The ratio of x to y is 1/2. If the ratio of x + 2 to y + 1 is 2/3, the

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V
Joined: 02 Sep 2009
Posts: 47880
The ratio of x to y is 1/2. If the ratio of x + 2 to y + 1 is 2/3, the  [#permalink]

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New post 04 Feb 2018, 21:19
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (00:40) correct 14% (01:11) wrong based on 57 sessions

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Joined: 17 Oct 2016
Posts: 325
Location: India
Concentration: Operations, Strategy
GPA: 3.73
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Re: The ratio of x to y is 1/2. If the ratio of x + 2 to y + 1 is 2/3, the  [#permalink]

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New post 04 Feb 2018, 21:56
B

x/y = 1/2

ie 2x=y

Also (x+2)/(y+1)=2/3

substituting for y we get,

x=4
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Re: The ratio of x to y is 1/2. If the ratio of x + 2 to y + 1 is 2/3, the  [#permalink]

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New post 05 Feb 2018, 12:15
1
Bunuel wrote:
The ratio of x to y is 1/2. If the ratio of x + 2 to y + 1 is 2/3, then what is the value of x?

(A) 6

(B) 4

(C) 3

(D) 2

(E) 1


\(\frac{x}{y}\) = \(\frac{1}{2}\) = \(\frac{z}{2z}\).....From here

x = z & y = 2z

Apply in the second ratio equation

\(\frac{x+2}{y+1}\) = \(\frac{2}{3}\)

\(\frac{z+2}{2z+1}\) = \(\frac{2}{3}\)

cross multiplication

3z + 6 = 4z + 2

z = 4 and hence x = z =4

Answer: B
Re: The ratio of x to y is 1/2. If the ratio of x + 2 to y + 1 is 2/3, the &nbs [#permalink] 05 Feb 2018, 12:15
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