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Lesson details
Key learning points
- In this lesson, we will interpret, solve and model solutions to inverse proportion problems.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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5 Questions
Q1.
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.
factor
prime
Q2.
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.
increases
stays the same
Q3.
Fill in the gaps: Two variable quantities are said to be ........................ proportional if the product of the two quantities is constant.
constantly
directly
Q4.
Three builders take 15 days to complete a project. How many days does would it take one builder?
30 days
5 days
Q5.
It takes 4 friends 6 hours to clean the garden. How long will it take 2?
24 hours
3 hours
5 Questions
Q1.
It takes 4 builders 6 days to build a wall. How long will it take 2 builders?
24 days
3 days
Q2.
It takes builders 6 days to build a wall. How long will it take 8 builders?
14 days
48 days
9 days
Q3.
It takes 2 people 3 hours to clean the house. How long does it take 6 people to clean?
0. 5 hrs
1.5 hrs.
Q4.
A journey takes 6 hours if driving at 30 mph. How long should the same journey if the driver drives ta 60mph?
4 hours
90 min
Q5.
True or False: The circumference of a circle and its diameter are inversely proportional?
True