GRE Percents, Ratios, and Proportions 1

Question 1

If a price increases from $80 to $100, what is the percent increase?

Accepted Answer

25%

Answer

Percent increase = (change / original) × 100 = (20 / 80) × 100 = 25%.

Question 2

What is 35% of 240?

Accepted Answer

84

Answer

0.35 × 240 = 84.

Question 3

A store discounts an item by 20%, then discounts the sale price by an additional 10%. What is the total percent reduction from the original price?

Accepted Answer

28%

Answer

After the two discounts, the price is 0.80 × 0.90 = 0.72, or 72% of the original, giving a 28% total reduction.

Question 4

If 40% of x equals 60, what is x?

Accepted Answer

150

Answer

0.40x = 60, so x = 60 / 0.40 = 150.

Question 5

A population grows from 5,000 to 6,500. What is the percent increase?

Accepted Answer

30%

Answer

Percent increase = (1,500 / 5,000) × 100 = 30%.

GRE Practice Test