It takes 4 builders 6 days to build a wall. How long will it take 2 builders?

It takes builders 6 days to build a wall. How long will it take 8 builders?

It takes 2 people 3 hours to clean the house. How long does it take 6 people to clean?

A journey takes 6 hours if driving at 30 mph. How long should the same journey if the driver drives ta 60mph?

True or False: The circumference of a circle and its diameter are inversely proportional?

Key Stage 3

Inverse proportion in context

Fill in the gaps: Two quantities a and b are said to be directly proportional if one quantity is always a constant ........ of the other.

Fill in the gaps: Two quantities x and y are said to be inversely proportional if x increases as y ............... at the same rate, so their product is constant.

Fill in the gaps: Two variable quantities are said to be ........................ proportional if the product of the two quantities is constant.

Three builders take 15 days to complete a project. How many days does would it take one builder?

It takes 4 friends 6 hours to clean the garden. How long will it take 2?

Inverse proportion in context

Lesson outcome