BMST Ratios, Proportions, and Percentages 5

Question 1

A recipe requires a sugar-to-flour ratio of 1:4. If you use 3 cups of sugar, how many cups of flour do you need?

Accepted Answer

12

Answer

3 × 4 = 12 cups of flour.

Question 2

An item costs $45 after a 10% discount. What was the original price?

Accepted Answer

$50

Answer

Original × 0.90 = $45, so original = 45 / 0.90 = $50.

Question 3

If 5 workers can complete a job in 12 days, how many days would 15 workers take (assuming constant rate)?

Accepted Answer

4

Answer

Total work = 5 × 12 = 60 worker-days; 60 / 15 = 4 days.

Question 4

A population grew from 8,000 to 10,000. What is the percentage growth?

Accepted Answer

25%

Answer

(10,000 − 8,000) / 8,000 × 100 = 2,000/8,000 × 100 = 25%.

Question 5

The ratio of apples to oranges is 2:3, and the ratio of oranges to grapes is 3:4. What is the ratio of apples to grapes?

Accepted Answer

2:4

Answer

Apples:oranges:grapes = 2:3:4, so apples to grapes = 2:4.

BMST - Basic Math and Science Test Practice Test