Rates, Speed and unit conversion

Jennifer buys 12 m of cloth for $51.

Find the cost of the cloth per metre.

Answer: $ _____ / m

If a truck can travel 240 km on 12 litres of petrol, what is the truck's rate of petrol consumption?

Answer: _____ km/l

A supermarket sells a bottle of body lotion which has a volume of 350 mℓ that costs $5.60.

Find the exact price per mℓ of the body lotion in dollars.

Answer: $ _____ / litres

For a Mathematics homework, Adrian did 10 questions on Monday and another 20 questions on Tuesday.

Calculate the average rate of questions done.

Answer: ______ questions per day

Jasper types 100 words in 3 minutes, rests for 5 minutes and then types another 80 words in 2 minutes.

What is his average typing rate?

Answer: _______ words per minute.

A sprinter runs 100 m in 10 seconds.

Find his running speed.

Answer: _____ m/s

Smith drove his car at 120 km/h on a highway for 2 hours.

How far did he travel?

Answer: _____ km

Danny drove his car at a speed of 80 km/h on the way to Malaysia from Singapore for 2 hours.

Find the distance Danny travelled in 2 hours

Answer: ______km

Tom drives at a speed of 100 km/h over a distance of 450 km.

How long, in hours, does he drives for?

Answer: _______h

Edwin cycles at a speed of 20 km/h over the distance of 15 km.

How long, in minutes, does the whole journey take?

Answer: ________ mins