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.

In the figure above, ABCD is a parallelogram and E is the midpoint of side AD. The area of triangular region ABE is what fraction of the area of quadrilateral region BCDE?

In the figure above, ABCD is a parallelogram and E is the midpoint of side AD. The area of triangular region ABE is what fraction of the area of quadrilateral region BCDE? A. 1/2 B. 1/3 C. 1/4 D. 1/5 E. 1/6 Correct Answer: B Full explanation coming soon. Send us a note if you’d like […]

In the figure above, ABCD is a parallelogram and E is the midpoint of side AD. The area of triangular region ABE is what fraction of the area of quadrilateral region BCDE? Read the Full Article »

The window in the figure above consists of a rectangle and a semicircle with dimensions as shown. What is the area, in square feet, of the window?

The window in the figure above consists of a rectangle and a semicircle with dimensions as shown. What is the area, in square feet, of the window? A. 40 + 8π B. 40 + 2π C. 32 + 8π D. 32 + 4π E. 32 + 2π Correct Answer: E Full explanation coming soon. Send

The window in the figure above consists of a rectangle and a semicircle with dimensions as shown. What is the area, in square feet, of the window? Read the Full Article »

In the figure shown, if the area of the shaded region is 3 times the area of the smaller circular region, then the circumference of the larger circle is how many times the circumference of the smaller circle?

In the figure shown, if the area of the shaded region is 3 times the area of the smaller circular region, then the circumference of the larger circle is how many times the circumference of the smaller circle? A. 4 B. 3 C. 2 D. √3 E. √2 Correct Answer: C Full explanation coming soon.

In the figure shown, if the area of the shaded region is 3 times the area of the smaller circular region, then the circumference of the larger circle is how many times the circumference of the smaller circle? Read the Full Article »

The interior of a rectangular carton is designed by a certain manufacturer to have a volume of x cubic feet and a ratio of length to width to height of 3:2:2. In terms of x, which of the following equals the height of the carton, in feet?

The interior of a rectangular carton is designed by a certain manufacturer to have a volume of x cubic feet and a ratio of length to width to height of 3:2:2. In terms of x, which of the following equals the height of the carton, in feet? A. 3√x B. 3√(2x/3) C. 3√(3x/2) D. 2/3

The interior of a rectangular carton is designed by a certain manufacturer to have a volume of x cubic feet and a ratio of length to width to height of 3:2:2. In terms of x, which of the following equals the height of the carton, in feet? Read the Full Article »