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# If Jim earns x dollars per hour, it will take him 4 hours to

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Manager
Joined: 04 Jan 2008
Posts: 83

Kudos [?]: 14 [0], given: 0

If Jim earns x dollars per hour, it will take him 4 hours to [#permalink]

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26 Jan 2008, 14:06
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If Jim earns x dollars per hour, it will take him 4 hours to earn exactly enough money to purchase a particular jacket. If Tom earns y dollars per hour, it will take him exactly 5 hours to earn enough money to purchase the same jacket. How much does the jacket cost?

(1) Tom makes 20% less per hour than Jim does.

(2) x + y = \$43.75

Kudos [?]: 14 [0], given: 0

Senior Manager
Joined: 22 Sep 2005
Posts: 278

Kudos [?]: 241 [0], given: 1

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26 Jan 2008, 14:35
Dellin wrote:
If Jim earns x dollars per hour, it will take him 4 hours to earn exactly enough money to purchase a particular jacket. If Tom earns y dollars per hour, it will take him exactly 5 hours to earn enough money to purchase the same jacket. How much does the jacket cost?

(1) Tom makes 20% less per hour than Jim does.

(2) x + y = \$43.75

B

We know that
J earns x \$/ hour, and the jacket costs 4x
T earns y\$/hour, and the jacket costs 5y.

So 4x=5y

1) INSUF. We knew this information from the data before, because y= 4x/5 =0.8x
We can not calculate the cost of the jacket

2) SUF. We have know another equation, so 2 var. with 2 equations.

Kudos [?]: 241 [0], given: 1

Re: data suffi-   [#permalink] 26 Jan 2008, 14:35
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