Percentages

40% of the 25 students in a class have black hair. How many students is this?

• 10

• 15

• 20

• 5

16 out of the 28 biscuits in a packet have cream centres. What percentage of the packet are cream-centred biscuits?

• 57%

• 58%

• 100%

• 30%

The usual price of a TV set was $500. During the Christmas holiday, the price of a TV set marked down to $413. What was the percentage decrease in the price of a TV set?

• 82.6%

• 87%

• 17.4%

• 25%

The number of people signed up for a bus trip increased from 32 to 45. What is the percent increase? Round to the nearest percent.

• 52%
• 41%
• 42%
• 45%

Find the percent change.
Original amount:  10
New amount: 12

• 20%
• 12%
• 15%
• 50%

One week, 72 people got a speeding ticket. The next week, only 36 people got a speeding ticket. What is the percent of change in the speeding tickets?

• Increase 50%
• Decrease 50%
• Increase 1%
• Decrease 1%

9 is 45% of what number?

A local bakery sold 50 loaves of bread in one day. If 70% of these were sold in the afternoon, how many loaves were sold in the afternoon?

360 runners are in a race. 20% are men. How many men are in the race? To word it another way, What is the amount of men in a race if 20% of 360 runners are in the race?

• 72

• 288

• 1,800

• 36

A pair of sunglasses is on sale for $26. The original price of the sunglasses was $40. What percent of the original price is the sale price? To word it another way, what percent of $40 sunglasses is $26 since they are on sale?

• 35%

• 154%

• 14%

• 65%