GRE Sample Test 5 Quantitative Reasoning 2

Question : 20 of 20

Marks: +1, -0

In the diagram above, the area of triangle ADC is what fraction of the area of triangle ABC?

Solution:

The base of both triangles has a length of 8. The height of triangle ADC is 7. The area of triangle ABC is thus

(1/2)

× 8 × 7 = 28. The height oftriangle ABC is 14. The area of triangle ABC is thus

1/2

× 8 × 14 = 56

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