# Problem solving with the Mean

## Lesson details

### Key learning points

1. In this lesson, we will solve different types of problems requiring us to calculate the mean, and problems where we need to determine numbers that have a provided mean value.

### 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.

## Video

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## Worksheet

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## Starter quiz

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### 3 Questions

Q1.
What is the mean of the following group of numbers? 2, 2, 4, 6, 6
2
3
4.5
Q2.
What is the mean of the following group of numbers? 0, 0, 1, 1, 2, 2, 5, 5
2.5
3
4
Q3.
A set of 5 numbers is 3, 7, 8, 10, x (where x is a missing number). The mean of these 5 numbers is 6. What is the value of x?
11
30
7

## Exit quiz

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### 3 Questions

Q1.
The mean of these set of numbers 1, 2, 3, 6 is...
2
4
5
Q2.
The number four is added to the set of numbers above. What happens to the mean?
It decreases
It stays the same
Q3.
In the first 6 tests he takes, Jake scores a mean of 60 marks. In the final 4 tests, he scores a mean of 70 marks. What is his overall mean?
65
66
70