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Oak National Academy
12 questions
Two variables are in direct proportion if they have a constant ___ relationship.
Which of these ratios represents this sentence? For every 1 dollar, you get 54 pence.
Izzy says, "I changed £200 and got $244". What is this as a unit ratio in pounds?
Andeep says, "I changed £200 and got €250". What is this as a unit ratio in euros?
A tap fills at a rate of 15 litres per minute. How long will it take to fill a paddling pool with a capacity of 360 litres?
Calculate the cost of electricity.
Speed is the rate at which something is moving. It is measured as the distance travelled per unit of ___.
If a car travels 12 miles in 20 minutes what is its average speed? Make sure you include the unit with your answer.
Match each scenario with the correct speed.
Calculate the speed during the first part of the journey. Remember to include the units of your answer.
The average speed of a helicopter is 160 mph. How far can it travel in 2 hour 45 minutes?
The distance of a flight from London to Cape Town is approximately 6000 miles. If a plane travels at an average speed of 500 mph, how long will the journey take in hours?
