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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.

Cheryl purchased 5 identical hollow pine doors and 6 identical solid oak doors for the house she is building. The regular price of each solid oak door was twice the regular price of each hollow pine door. However, Cheryl was given a discount of 25% off the regular price of each solid oak door. If the regular price of each hollow pine door was $40, what was the total price of all 11 doors?

Cheryl purchased 5 identical hollow pine doors and 6 identical solid oak doors for the house she is building. The regular price of each solid oak door was twice the regular price of each hollow pine door. However, Cheryl was given a discount of 25% off the regular price of each solid oak door. If

Cheryl purchased 5 identical hollow pine doors and 6 identical solid oak doors for the house she is building. The regular price of each solid oak door was twice the regular price of each hollow pine door. However, Cheryl was given a discount of 25% off the regular price of each solid oak door. If the regular price of each hollow pine door was $40, what was the total price of all 11 doors? Read the Full Article »

Pumping alone at their respective constant rates, one inlet pipe fills an empty tank to 1/2 of capacity in 3 hours and a second inlet pipe fills the same empty tank to 2/3 of capacity in 6 hours. How many hours will it take both pipes, pumping simultaneously at their respective constant rates, to fill the empty tank to capacity?

Pumping alone at their respective constant rates, one inlet pipe fills an empty tank to 1/2 of capacity in 3 hours and a second inlet pipe fills the same empty tank to 2/3 of capacity in 6 hours. How many hours will it take both pipes, pumping simultaneously at their respective constant rates, to fill the empty tank to

Pumping alone at their respective constant rates, one inlet pipe fills an empty tank to 1/2 of capacity in 3 hours and a second inlet pipe fills the same empty tank to 2/3 of capacity in 6 hours. How many hours will it take both pipes, pumping simultaneously at their respective constant rates, to fill the empty tank to capacity? Read the Full Article »

According to the table shown, the estimated number of home-schooled students in State A is approximately what percent greater than the number in State D?

According to the table shown, the estimated number of home-schooled students in State A is approximately what percent greater than the number in State D? A. 25% B. 55% C. 100% D. 125% E. 155% Correct Answer: D Full explanation coming soon. Send us a note if you’d like this added to the express queue!

According to the table shown, the estimated number of home-schooled students in State A is approximately what percent greater than the number in State D? Read the Full Article »

Company P had 15 percent more employees in December than it had in January. If Company P had 460 employees in December, how many employees did it have in January?

Company P had 15 percent more employees in December than it had in January. If Company P had 460 employees in December, how many employees did it have in January? A. 391 B. 400 C. 410 D. 423 E. 445 Correct Answer: B Full explanation coming soon. Send us a note if you’d like this

Company P had 15 percent more employees in December than it had in January. If Company P had 460 employees in December, how many employees did it have in January? Read the Full Article »

A retailer purchased eggs at $2.80 per dozen and sold the eggs at 3 eggs for $0.90. What was the retailer’s gross profit from purchasing and selling 5 dozen eggs? (1 dozen eggs = 12 eggs)

A retailer purchased eggs at $2.80 per dozen and sold the eggs at 3 eggs for $0.90. What was the retailer’s gross profit from purchasing and selling 5 dozen eggs? (1 dozen eggs = 12 eggs) A. $0.90 B. $2.40 C. $4.00 D. $11.30 E. $12.00 Correct Answer: C Full explanation coming soon. Send us

A retailer purchased eggs at $2.80 per dozen and sold the eggs at 3 eggs for $0.90. What was the retailer’s gross profit from purchasing and selling 5 dozen eggs? (1 dozen eggs = 12 eggs) Read the Full Article »