Percentages

What is 20% of 80?

• 18

• 12

• 22

• 16

Answer explanation

To find 20% of 80, multiply 80 by 0.20. 80 * 0.20 = 16. Therefore, 20% of 80 is 16.

If a shirt originally costs $50 and is on sale for 25% off, what is the sale price?

• $45.00

• $37.50

• $40.00

• $25.00

Answer explanation

To find the sale price, subtract 25% of $50 from $50. 25% of $50 is $12.50, so $50 - $12.50 = $37.50. Therefore, the sale price is $37.50.

Convert 3/4 to a percentage.

• 25%

• 50%

• 100%

• 75%

Answer explanation

To convert a fraction to a percentage, multiply by 100. 3/4 * 100 = 75%.

Express 0.6 as a percentage.

• 60%

• 50%

• 40%

• 75%

Answer explanation

To express 0.6 as a percentage, you multiply by 100. Therefore, 0.6 * 100 = 60%, so the correct answer is 60%.

If a student scored 85 out of 100 in a test, what percentage did they score?

• 80%

• 75%

• 85%

• 90%

Answer explanation

The student scored 85 out of 100, which translates to 85%. Therefore, the correct percentage they scored is 85%.

A car depreciates by 15% each year. If its original value was $20,000, what will be its value after 3 years?

• $16,800

• $12,210

• $18,250

• $14,500

Answer explanation

To find the value after 3 years, we calculate 20,000 * (1-0.15)^3 = $12,210. Therefore, the correct answer is $12,210.

What is 40% of 250?

• 50

• 90

• 120

• 100

Answer explanation

To find 40% of 250, multiply 250 by 0.4 which equals 100. Therefore, the correct answer is 100.

If a store marks up an item by 50% and sells it for $90, what was the original price?

• $100

• $80

• $60

• $45

Answer explanation

To find the original price, we need to divide $90 by 1.5 (1 + 0.5 markup percentage). $90 / 1.5 = $60, which was the original price.

Convert 0.2 to a percentage.

• 10%

• 20%

• 25%

• 30%

Answer explanation

To convert a decimal to a percentage, multiply by 100. Therefore, 0.2 * 100 = 20%, so the correct answer is 20%.

If a recipe calls for 2/3 cup of sugar and you only want to use half of that, what percentage of sugar will you use?

• 25%

• 75%

• 50%

• 33%

Answer explanation

To find the percentage of sugar used, you need to calculate half of 2/3 cup, which is 1/3 cup. This is 50% of the original amount of sugar (2/3 cup), so the correct answer is 50%.