Foundation June 2019 Paper 1 Q10
10 Mr and Mrs Wilde have five children who are all different ages.
- The mean age is 6.4.
- The range is 9.
- The median is 6.
- The oldest child is 12.
Work out the ages of the children.
Write their ages from youngest to oldest. [4]
| Answer | Marks | Part marks and guidance |
|---|---|---|
| 3, 4, 6, 7, 12 | 4 | B1 for 6 or 12 placed in correct position B1 for 3 in the correct position M1 for \((6.4 \times 5) - (12 + 6 + 3)\) soi by 11 or by 4 and 7 or by any two numbers in the second and fourth positions between 3 and 5 inclusive, and between 6 and 8 inclusive which sum to 11 |