old GMAT exam question

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old GMAT exam question

by Nisha1218 » Mon Sep 10, 2007 6:12 pm
On a certain road 10 percent of the motorists exceed the posted speed limit and receive speeding tickets, but 20 perfect of the motorists who exceed the posted speed limit do not receive speeding tickets. What percent of the motorists on the road exceed the posted speed limit?

A. 10 1/2%
B. 12 1/2%
C. 15%
D. 22%
E. 30%
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by ri2007 » Mon Sep 10, 2007 6:45 pm
Hi Nisha

Can you pls confirm if the sentence below from ur question is written correct (not sure I understand the word "perfect" - is that %?

but 20 perfect of the motorists who exceed the posted speed limit do not receive speeding tickets

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by Nisha1218 » Mon Sep 10, 2007 6:46 pm
ya sorry i type in a hurry...

On a certain road 10 percent of the motorists exceed the posted speed limit and receive speeding tickets, but 20 percent of the motorists who exceed the posted speed limit do not receive speeding tickets. What percent of the motorists on the road exceed the posted speed limit?

A. 10 1/2%
B. 12 1/2%
C. 15%
D. 22%
E. 30%