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Jack and Mark both received hourly wage increases of 6

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Intern
Joined: 09 Jun 2006
Posts: 14
Followers: 0

Kudos [?]: 0 [0], given: 0

Jack and Mark both received hourly wage increases of 6 [#permalink]  03 Oct 2006, 16:47
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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 the increases, Jack's hourly wage was $5 per hour more than Mark's. 2) Before the wage increases, the ratio of Jack's hourly wage to Mark's was 4:3. Senior Manager Joined: 13 Sep 2006 Posts: 282 Location: New York Followers: 1 Kudos [?]: 8 [0], given: 0 [#permalink] 03 Oct 2006, 19:03 My vote is for A. Statement 1: difference between salaries is$5. Pick numbers...30 and 35 + 6% increase yields a difference of $5.30. You get the same exact value when you pick other numbers that are$5 apart (i.e 42 and 37). So the dollar difference will always be $5 (+change bue question asks about$ difference)

Statement 2:
Not enough information. 4:3 ratio could mean that one person makes $12 and the other makes$9 or that one person makes $40 and the other$30. Difference in salary would vary widely then - not sufficient.
Director
Joined: 17 Jul 2006
Posts: 716
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Kudos [?]: 8 [0], given: 0

A sufficient.

Since both has no change in their salary number (ex 40 and 45) and percentage increase also the same, the new salary revised would be the same difference. So A stands.
Current Student
Joined: 29 Jan 2005
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Matrix02 wrote:
My vote is for A.

Statement 1:

difference between salaries is $5. Pick numbers...30 and 35 + 6% increase yields a difference of$5.30. You get the same exact value when you pick other numbers that are $5 apart (i.e 42 and 37). So the dollar difference will always be$5 (+change bue question asks about $difference) Statement 2: Not enough information. 4:3 ratio could mean that one person makes$12 and the other makes $9 or that one person makes$40 and the other $30. Difference in salary would vary widely then - not sufficient. Interesting observation. Tried the same with$100 and $105 and it also came out to a$5.30 difference.

(A)
Senior Manager
Joined: 28 Aug 2006
Posts: 302
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1
KUDOS
We do not need any examples here.........
Initially J-M = 5
Now it will be 106%(J)- 106%(M)
ie 106%(J-M) = 106% (5) = 5.3\$
So A
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