Foundation November 2023 Paper 2 Q6
6 Three adults, Amos, Beth and Charlie, are comparing their age in years.
Amos is 32.
Beth is 48.
The mean age of Amos, Beth and Charlie is 50.
Work out the age of Charlie. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 70 | 3 | M2 for \((50 \times 3) - (32 + 48)\) oe or M1 for \(50 \times 3\) or for \(\frac{32 + 48 + c}{3} = 50\) or better | M1 implied by 150 Accept any letter or symbol for missing age |