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 function f is defined by f(x)=√x −10 for all positive numbers x. If u = f(t) for some positive numbers t and u, what is t in terms of u?

The function f is defined by f(x)=√x −10 for all positive numbers x. If u = f(t) for some positive numbers t and u, what is t in terms of u? A. √(√u + 10) B. (√u + 10)² C. √(u² + 10) D. (u + 10)² E. (u² + 10)² Correct Answer: D Full explanation coming soon. Send us a note if you’d like this added to the […]

The function f is defined by f(x)=√x −10 for all positive numbers x. If u = f(t) for some positive numbers t and u, what is t in terms of u? Read the Full Article »

A total of s oranges are to be packaged in boxes that will hold r oranges each, with no oranges left over. When n of these boxes have been completely filled, what is the number of boxes that remain to be filled?

A total of s oranges are to be packaged in boxes that will hold r oranges each, with no oranges left over. When n of these boxes have been completely filled, what is the number of boxes that remain to be filled? A. s – nr B. s – n/r C. rs – n D. s/n – r E. s/r –

A total of s oranges are to be packaged in boxes that will hold r oranges each, with no oranges left over. When n of these boxes have been completely filled, what is the number of boxes that remain to be filled? Read the Full Article »

On a vacation, Rose exchanged $500.00 for euros at an exchange rate of 0.80 euro per dollar and spent 3/4 of the euros she received. If she exchanged the remaining euros for dollars at an exchange rate of $1.20 per euro, what was the dollar amount she received?

On a vacation, Rose exchanged $500.00 for euros at an exchange rate of 0.80 euro per dollar and spent 3/4 of the euros she received. If she exchanged the remaining euros for dollars at an exchange rate of $1.20 per euro, what was the dollar amount she received? A. $60.00 B. $80.00 C. $100.000 D.

On a vacation, Rose exchanged $500.00 for euros at an exchange rate of 0.80 euro per dollar and spent 3/4 of the euros she received. If she exchanged the remaining euros for dollars at an exchange rate of $1.20 per euro, what was the dollar amount she received? Read the Full Article »