Source: GMAT Paper Tests
In the circular region with center 0, shown above, the two unshaded sections comprise \(\frac{3}{7}\) and \(\frac{1}{3}\) of the area of the circular region. The shaded section comprises what fractional part of the area of the circular region?
A. \(\dfrac{3}{5}\)
B. \(\dfrac{6}{7}\)
C. \(\dfrac{2}{21}\)
D. \(\dfrac{5}{21}\)
E. \(\dfrac{16}{21}\)
The OA is D
In the circular region with center 0, shown above, the two unshaded sections comprise \(\frac{3}{7}\) and
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