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Andrew Geller

Andrew Geller is a top GMAT tutor based out of New York City. Throughout his career he has successfully taught people from many different backgrounds, countries, and starting scores.

The figure above represents a semicircular archway over a flat street. The semicircle has a center at O and a radius of 6 feet. What is the height h, in feet, of the archway 2 feet from its center?

The figure above represents a semicircular archway over a flat street. The semicircle has a center at O and a radius of 6 feet. What is the height h, in feet, of the archway 2 feet from its center? A. √2 B. 2 C. 3 D. 4√2 E. 6 Correct Answer: D Full explanation coming soon. Send us

The figure above represents a semicircular archway over a flat street. The semicircle has a center at O and a radius of 6 feet. What is the height h, in feet, of the archway 2 feet from its center? Read the Full Article »

The figure above shows a path around a triangular piece of land. Mary walked the distance of 8 miles from P to Q and then walked the distance of 6 miles from Q to R. If Ted walked directly from P to R, by what percent did the distance that Mary walked exceed the distance that Ted walked?

The figure above shows a path around a triangular piece of land. Mary walked the distance of 8 miles from P to Q and then walked the distance of 6 miles from Q to R. If Ted walked directly from P to R, by what percent did the distance that Mary walked exceed the distance that Ted walked? A. 30% B. 40% C. 50% D. 60%

The figure above shows a path around a triangular piece of land. Mary walked the distance of 8 miles from P to Q and then walked the distance of 6 miles from Q to R. If Ted walked directly from P to R, by what percent did the distance that Mary walked exceed the distance that Ted walked? Read the Full Article »

A flat patio was built alongside a house as shown in the figure above. If all angles shown are right angles, what is the area of the patio in square feet?

A flat patio was built alongside a house as shown in the figure above. If all angles shown are right angles, what is the area of the patio in square feet? A. 800 B. 875 C. 1,000 D. 1,100 E. 1,125 Correct Answer: C Full explanation coming soon. Send us a note if you’d like

A flat patio was built alongside a house as shown in the figure above. If all angles shown are right angles, what is the area of the patio in square feet? Read the Full Article »

In the figure, the 6 small squares are identical, each with sides of length 1. What is the outer perimeter (shown in bold) of the entire figure?

In the figure, the 6 small squares are identical, each with sides of length 1. What is the outer perimeter (shown in bold) of the entire figure? A. 8 B. 12 C. 16 D. 20 E. 24 Correct Answer: B Full explanation coming soon. Send us a note if you’d like this added to the

In the figure, the 6 small squares are identical, each with sides of length 1. What is the outer perimeter (shown in bold) of the entire figure? Read the Full Article »

In the xy-coordinate plane, which of the following points must lie on the line kx + 3y = 6 for every possible value of k?

In the xy-coordinate plane, which of the following points must lie on the line kx + 3y = 6 for every possible value of k? A. (1,1) B. (0,2) C. (2,0) D. (3,6) E. (6,3) Correct Answer: B Full explanation coming soon. Send us a note if you’d like this added to the express queue! You’ll find tons of practice

In the xy-coordinate plane, which of the following points must lie on the line kx + 3y = 6 for every possible value of k? Read the Full Article »