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GRE Sample Test 3 Quantitative Reasoning 1
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Question : 19
Total: 20
If the length of a certain square increases by 10% and the width of the square decreases by 10%, the area of the resulting rectangle will be what percentage of the area of the original square?
98%
99%
100%
101%
102%
Validate
Solution:
Plug in numbers. Let the original length = 10 and the original width = 10. The new length is this 1.1(10) = 11, and the new width is thus .9(10) = 9. The new area is thus 99. The original area was 100. 99 is 99% of 100.
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