### All GRE Math Resources

## Example Questions

### Example Question #11 : Proportion / Ratio / Rate

16 ounces of lemonade mix makes 2 gallons of lemonade (one gallon is equivalent to 4 quarts).

Quantity A: Amount of mix needed to make 3 quarts of lemonade

Quantity B: 6 ounces of mix

**Possible Answers:**

The relationship cannot be determined from the information given

Quantity A is greater

Quantity B is greater

The two quantities are equal

**Correct answer:**

The two quantities are equal

2 gallons of lemonade equals 8 quarts of lemonade. To make 3 quarts of lemonade, you need of the amount needed to make 2 gallons of lemonade, or 6 ounces of mix.

### Example Question #12 : How To Find Proportion

In a class with students, if are taking Calculus and are taking Chinese, what is the lowest amount of students possible in the class that are taking both Calculus and Chinese?

**Possible Answers:**

**Correct answer:**

This problem states that there are students in the class taking Calculus. Because the class has a total of students, that means there are only students in the class not taking Calculus. The problem also states that there are students in the class taking Chinese. Because only students in the class aren't taking Calculus, this means that there is a minimum of students in the class that are taking both Calculus and Chinese.

### Example Question #13 : How To Find Proportion

If an a train is traveling at 8 feet per second, how many feet does it travel in 2 hours?

**Possible Answers:**

**Correct answer:**

For this problem, you must do conversions of from hours to seconds.

Two hours is equal 120 minutes

.

120 minutes is equal to 7200 second

.

The train travels 8 feet per second so in 7200 seconds it travels 57600 feet

.