Inverse proportion

In this lesson, you will explore when two quantities are inversely proportional to each other.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.1 bar of chocolate costs £2.10. How much do 3 bars of chocolate cost?

1/5

Q2.Four tickets to the cinema cost £42. How much do 8 tickets cost?

2/5

Q3.Four tickets to the cinema cost £42. How much do 9 tickets cost?

3/5

Q4.Fill in the gaps: You can use .............. .............. to work out the best value for money.

4/5

Q5.x and y are directly proportional. What happens to y if x doubles?

5/5

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.1 bar of chocolate costs £2.10. How much do 3 bars of chocolate cost?

1/5

Q2.Four tickets to the cinema cost £42. How much do 8 tickets cost?

2/5

Q3.Four tickets to the cinema cost £42. How much do 9 tickets cost?

3/5

Q4.Fill in the gaps: You can use .............. .............. to work out the best value for money.

4/5

Q5.x and y are directly proportional. What happens to y if x doubles?

5/5

Video

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Worksheet

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Quiz:

Inverse Proportion

Exit Quiz

Question 1

Question 2

Question 3

Question 4

Question 5

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.

1/5

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.

2/5

Q3.Fill in the gaps: Two variable quantities are said to be ........................ proportional if the product of the two quantities is constant.

3/5

Q4.Three builders take 15 days to complete a project. How many days does would it take one builder?

4/5

Q5.It takes 4 friends 6 hours to clean the garden. How long will it take 2?

5/5

Quiz:

Inverse Proportion

Exit Quiz

Question 1

Question 2

Question 3

Question 4

Question 5

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.

1/5

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.

2/5

Q3.Fill in the gaps: Two variable quantities are said to be ........................ proportional if the product of the two quantities is constant.

3/5

Q4.Three builders take 15 days to complete a project. How many days does would it take one builder?

4/5

Q5.It takes 4 friends 6 hours to clean the garden. How long will it take 2?

5/5

Lesson summary: Inverse proportion

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