GMAT Question of the Day (September 20)

Math

How many roots does the equation have?

A. 0
B. 1
C. 2
D. 3
E. 4

Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the answer)

Verbal

In the late nineteenth century, the archaeologist Charles Warren discovered a new way to explore otherwise inaccessible areas, using vertical shafts leading to horizontal tunnels deep beneath the surface. These tunnels led directly to those areas. Based on Warren's discovery, Zachi Zweig, a rising star in the archaeological scene, has concluded that similar shafts may be dug on shores in proximity to sunken archeological artifacts, leading to tunnels beneath the sea floor allowing easy access to those artifacts.

What is the hidden assumption underlying Prof. Zweig's hypothesis?

A) The specific weight of water and earth are similar, thus creating the same pressure on the tunnel's ceiling.
B) Otherwise inaccessible sunken archeological artifacts can be reached using new technological advancements in the world of marine robotics.
C) Tunnels beneath the seafloor and tunnels beneath dry land share the same vertical distance from the surface.
D) Shafts similar to those dug by the celebrated Warren may be dug on the sea-shore, enabling archaeologists easy access to otherwise inaccessible sunken archeological artifacts.

E) Otherwise inaccessible terrain can be reached below the surface using vertical shafts.

Question Discussion & Explanation

Correct Answer - A - (click and drag your mouse to see the answer)

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