Mastering Rates and Best Buys

A car travels 300 kilometres in 4 hours. What is the unit rate of the car's speed in kilometres per hour?

• 50 km/h

• 75 km/h

• 100 km/h

• 150 km/h

If 5 kilograms of apples cost $15, what is the cost per kilogram?

• $2

• $3

• $4

• $5

A cyclist covers a distance of 90 kilometres in 3 hours. What is the cyclist's speed in kilometres per hour?

• 20 km/h

• 25 km/h

• 30 km/h

• 35 km/h

A printer prints 240 pages in 6 minutes. How many pages does it print per minute?

• 30 pages/minute

• 35 pages/minute

• 40 pages/minute

• 45 pages/minute

• 3 litres for $6

• 5 litres for $9

A car uses 8 litres of petrol to travel 100 kilometres. How many litres are needed to travel 250 kilometres?

• 15 litres

• 20 litres

• 25 litres

• 30 litres

If a person earns $480 for 40 hours of work, what is their hourly wage?

• $10

• $12

• $15

• $18

A train travels 180 kilometres in 2 hours. What is the train's speed in kilometres per hour?

• 70 km/h

• 80 km/h

• 90 km/h

• 100 km/h

• 250 grams for $5

• 500 grams for $9

A factory produces 1,200 widgets in 8 hours. How many widgets does it produce per hour?

• 100 widgets/hour

• 125 widgets/hour

• 150 widgets/hour

• 175 widgets/hour