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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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Math Expert
Joined: 02 Sep 2009
Posts: 52285
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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04 Feb 2018, 20:19
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Difficulty:

5% (low)

Question Stats:

83% (01:05) correct 18% (01:22) wrong based on 61 sessions

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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, then what is the value of x?

(A) 6

(B) 4

(C) 3

(D) 2

(E) 1

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Joined: 17 Oct 2016
Posts: 318
Location: India
Concentration: Operations, Strategy
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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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04 Feb 2018, 20:56
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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Joined: 26 Mar 2013
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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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05 Feb 2018, 11:15
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

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, 11:15
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