Jack and Mark both received hourly wage increases of 6 : GMAT Data Sufficiency (DS)
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# Jack and Mark both received hourly wage increases of 6

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01 Jun 2008, 12:00
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38% (00:00) correct 63% (01:21) wrong based on 11 sessions

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Jack and Mark both received hourly wage increases of 6 percent. After the wage increases Jack's hourly wage was how many dollars per hour more than Mark's?

(1) Before increase, Jack's hourly wage was 5 dollars more than Mark's

(2) Before increase, the ratio of Jack's hourly wage to Mark's hourly wage was 4:3
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Re: Gmat Prep Problem (tricky problem) [#permalink]

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01 Jun 2008, 13:34

I will give explanation if correct
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Re: Gmat Prep Problem (tricky problem) [#permalink]

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01 Jun 2008, 14:23
A

statement 2: insuff because

Jack = 100
mark = 75

or
Jack = 1000
mark = 750
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Re: Gmat Prep Problem (tricky problem) [#permalink]

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01 Jun 2008, 14:37
1
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irishspring wrote:
Jack and Mark both received hourly wage increases of 6 percent. After the wage increases Jack's hourly wage was how many dollars per hour more than Mark's?

(1) Before increase, Jack's hourly wage was 5 dollars more than Mark's

(2) Before increase, the ratio of Jack's hourly wage to Mark's hourly wage was 4:3

From 1) Let M's wage before increase = x, therefore J's = x+5
After the 6% increase M's = 1.06x and J's = 1.06(x+5)
Subtract: (1.06(x+5)) - 1.06x
Hece BCE out

2) M's wasge = x , J's = y
y/x = 4/3
Two unknows hence cannot find an answer.

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Re: Gmat Prep Problem (tricky problem) [#permalink]

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01 Jun 2008, 15:42
OA is A.

Good work guys.
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Re: Gmat Prep Problem (tricky problem) [#permalink]

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03 Jun 2008, 03:23
Good Solution.
So answer is 5.3 dollars more right?(assuming not a DS question)
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Re: Gmat Prep Problem (tricky problem) [#permalink]

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03 Jun 2008, 06:11
Good Solution.
So answer is 5.3 dollars more right?(assuming not a DS question)

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Re: Gmat Prep Problem (tricky problem) [#permalink]

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03 Jun 2008, 06:59
irishspring wrote:
Jack and Mark both received hourly wage increases of 6 percent. After the wage increases Jack's hourly wage was how many dollars per hour more than Mark's?

(1) Before increase, Jack's hourly wage was 5 dollars more than Mark's

(2) Before increase, the ratio of Jack's hourly wage to Mark's hourly wage was 4:3

J: 1/J

M: 1/M

1: x+5=J x=M

1.06(x+5)-1.06x

A
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Re: Gmat Prep Problem (tricky problem) [#permalink]

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09 Feb 2011, 14:33
1.06J-1.06M= 1.06(J-M)

The value of the difference is given in 1, also 1 is sufficient.
2 is insufficient, because it only gives the proportion
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Re: Gmat Prep Problem (tricky problem) [#permalink]

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10 Feb 2011, 01:05
+1 for A, nice explanations above
Re: Gmat Prep Problem (tricky problem)   [#permalink] 10 Feb 2011, 01:05
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