BSEP Ratios and Proportions 2

Question 1

A recipe calls for 2 cups of flour for every 3 cups of oats. If you use 8 cups of flour, how many cups of oats do you need?

Accepted Answer

12 cups

Answer

Set up the proportion 2/3 = 8/x, then cross-multiply to get x = 12.

Question 2

A map uses a scale of 1 inch = 50 miles. If two cities are 3.5 inches apart on the map, what is the actual distance?

Accepted Answer

175 miles

Answer

Multiply 3.5 inches by 50 miles per inch to get 175 miles.

Question 3

The ratio of boys to girls in a class is 4:5. If there are 20 boys, how many girls are there?

Accepted Answer

25 girls

Answer

Set up 4/5 = 20/x and solve: x = (20 × 5) / 4 = 25.

Question 4

If 5 pounds of apples cost $7.50, how much do 8 pounds cost?

Accepted Answer

$12.00

Answer

The unit price is $1.50/lb, so 8 × $1.50 = $12.00.

Question 5

Which ratio is NOT equivalent to 6:9?

Accepted Answer

3:5

Answer

6:9 simplifies to 2:3; 3:5 does not equal 2:3.

BSEP - Basic Skills Education Program Practice Test