abhisays wrote:10% of GMAT test takers take the exam more than once and have a high score of 700 or greater, and 20% of GMAT test takers who take the test only once have a score of 700 or greater. If 40% of GMAT test takers take the exam more than once, what percent of GMAT test takers have a high score less than 700?
A. 10.5%
B. 22%
C. 30%
D. 70%
E. 78 %
Use a group grid to organize the information.
Let total = 100.
In the grids below:
-- All the numbers in the grid have to add up horizontally and vertically.
-- Values given by the problem are entered in blue.
-- Values calculated based upon information given by the problem are entered in red.
40% take the exam more than once.
10% take the exam more than once and have a score of 700 or greater.
20% of GMAT test takers who take the test only once have a score of 700 or greater.
Total with a score less than 700 = 78%.
The correct answer is
E.
Last edited by
GMATGuruNY on Sun Jul 31, 2011 6:21 am, edited 1 time in total.
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