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In the circular region with center 0, shown above, the two unshaded sections comprise 3/7 and 1/3 of...

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by BTGmoderatorLU » Wed Apr 29, 2020 7:16 am

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Source: GMAT Paper Tests
shot17.jpg
In the circular region with center 0, shown above, the two unshaded sections comprise 3/7 and 1/3 of the area of the circular region. The shaded section comprises what fractional part of the area of the circular region?

A. 3/5
B. 6/7
C.2/21
D. 5/21
E. 16/21

The OA is D
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Re: In the circular region with center 0, shown above, the two unshaded sections comprise 3/7 and 1/3 of...

by Scott@TargetTestPrep » Fri May 01, 2020 3:14 pm
BTGmoderatorLU wrote: ↑
Wed Apr 29, 2020 7:16 am
 Source: GMAT Paper Tests

shot17.jpg

In the circular region with center 0, shown above, the two unshaded sections comprise 3/7 and 1/3 of the area of the circular region. The shaded section comprises what fractional part of the area of the circular region?

A. 3/5
B. 6/7
C.2/21
D. 5/21
E. 16/21

The OA is D
The shaded section is 1 - 1/3 - 3/7 = 21/21 - 7/21 - 9/21 = 5/21 of the area of the circular region.

Answer: D

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