Yr 9 Unit 4

What is the simplified form of the ratio 15:45?

• 1:3
• 3:6
• 2:5
• 1:4

If a recipe requires a ratio of 2:3 of flour to sugar, how much sugar is needed if 8 cups of flour are used?

• 6 cups
• 10 cups
• 15 cups
• 12 cups

A car travels 120 miles in 2 hours. What is the average speed of the car?

• 60 miles per hour
• 100 miles per hour
• 80 miles per hour
• 40 miles per hour

Calculate the average speed of a cyclist who covers 50 kilometers in 2.5 hours.

• 15 km/h
• 20 km/h
• 30 km/h
• 25 km/h

What is 25% of 200?

• 75
• 40
• 50
• 30

A shirt originally priced at $40 is on sale for 30% off. What is the sale price?

• $32
• $25
• $35
• $28

If you deposit $500 in a savings account with an annual simple interest rate of 5%, how much interest will you earn in one year?

• $15
• $50
• $10
• $25

What is the compound interest on $1000 for 2 years at an annual interest rate of 4%, compounded annually?

• $81.60
• $65.80
• $75.40
• $90.20

A house was bought for $200,000 and its value increased by 15% over five years. What is the new value of the house?

• $250,000
• $215,000
• $240,000
• $230,000

After a 10% decrease in the price of a laptop, the new price is $450. What was the original price?

• $480
• $420
• $400
• $500