Ratios and Proportions — God's Mathematical Design

Test your understanding of ratios, equivalent ratios, rates, proportions, and percentages.

Question 1 of 8

A bag contains 8 red marbles and 12 blue marbles. What is the ratio of red marbles to blue marbles in simplest form?

Question 2 of 8

Which of the following ratios is equivalent to 3:5?

Question 3 of 8

A car travels 240 miles in 4 hours. What is the unit rate?

Question 4 of 8

Solve the proportion: 4/6 = x/15

Question 5 of 8

What is 25% of 160?

Question 6 of 8

Abraham gave a tithe, which is what percentage of his possessions?

Question 7 of 8

A map has a scale of 1 cm = 50 km. If two cities are 4.5 cm apart on the map, what is the actual distance?

Question 8 of 8

A shirt originally costs $40 and is on sale for $30. What is the percent decrease?