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.

A border of uniform width is placed around a rectangular photograph that measures 8 inches by 10 inches. If the area of the border is 144 square inches, what is the width of the border, in inches?

A border of uniform width is placed around a rectangular photograph that measures 8 inches by 10 inches. If the area of the border is 144 square inches, what is the width of the border, in inches? (A) 3 (B) 4 (C) 6 (D) 8 (E) 9 Correct Answer: A Full explanation coming soon. Send […]

A border of uniform width is placed around a rectangular photograph that measures 8 inches by 10 inches. If the area of the border is 144 square inches, what is the width of the border, in inches? Read the Full Article »

If s and t are positive integers such that s/t = 64.12, which of the following could be the remainder when s is divided by t?

If s and t are positive integers such that s/t = 64.12, which of the following could be the remainder when s is divided by t? (A) 2 (B) 4 (C) 8 (D) 20 (E) 45 Correct Answer: E Full explanation coming soon. Send us a note if you’d like this added to the express

If s and t are positive integers such that s/t = 64.12, which of the following could be the remainder when s is divided by t? Read the Full Article »

Material A costs $3 per kilogram, and Material B costs $5 per kilogram. If 10 kilograms of Material K consists of x kilograms of Material A and y kilograms of Material B, is x > y?

Material A costs $3 per kilogram, and Material B costs $5 per kilogram. If 10 kilograms of Material K consists of x kilograms of Material A and y kilograms of Material B, is x > y? (1) y > 4 (2) The cost of the 10 kilograms of Material K is less than $40. A.

Material A costs $3 per kilogram, and Material B costs $5 per kilogram. If 10 kilograms of Material K consists of x kilograms of Material A and y kilograms of Material B, is x > y? Read the Full Article »