GRE Math : How to find a fraction from a percentage

Example Questions

Example Question #6 : Percentage

Column A:

Column B:

Column A is greater.

Column B is greater.

The two quantities are equal.

The relationship cannot be determined from the given information.

Column B is greater.

Explanation:

2/5% = 0.40% = 0.004.  Therefore, Column B is greater.

Example Question #1 : Percentage

is  percent of

is  percent of

Quantity A:

Quantity B:

The relationship cannot be determined.

The two quantities are equal.

Quantity B is greater.

Quantity A is greater.

Quantity B is greater.

Explanation:

To do this problem, translate each expression into mathematical terms:

is  percent of :

is  percent of :

Quantity B is greater.

Example Question #8 : Percentage

Quantity A: 20% of

Quantity B: 30% of

The two quantities are equal.

Quantity A is greater.

The relationship cannot be determined.

Quantity B is greater.

Quantity B is greater.

Explanation:

To solve this problem, consider writing the quantities in terms of only fractions:

Quantity A: 20% of

Quantity B: 30% of

Quantity B has the smaller denominator for an equal numerator. There is no need for calculation beyond this, and time on the GRE would be best spent elsewhere.

Quantity B is greater.

Tired of practice problems?

Try live online GRE prep today.