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In a computer repair shop the ratio of the number of CPUs

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by GMIHIR » Sat May 19, 2012 8:08 am
In a computer repair shop the ratio of the number of CPUs to the number of motherboards to the number of keyboards to the number of mouse pads is 2:3:5:7.What is the difference in the total number of keyboards and mother boards?
(1) The number of keyboards lies between 6 to 14.
(2) The difference between the total number of mouse pads and CPUs is 10.
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Source: — Data Sufficiency |
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by GmatKiss » Sat May 19, 2012 9:26 am
In a computer repair shop the ratio of the number of CPUs to the number of motherboards to the number of keyboards to the number of mouse pads is 2:3:5:7.What is the difference in the total number of keyboards and mother boards?

(1) The number of keyboards lies between 6 to 14.

So Keyboard should be 10; and mouse pad is 14
Sufficient

(2) The difference between the total number of mouse pads and CPUs is 10.

Mother board is 30,CPU is 20, so as the difference is 10
Keyboard and Mouse pad will be 50 and 70
Sufficient

IMO: D
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