Foundation June 2024 Paper 1R Q16
16 Here are six cards.
Five of the cards have a number written on them.
Work out the number that should be written on the last card so that the mean of the six numbers will be 11
(3)
| Scheme | Marks |
|---|---|
| \(11 \times 6\ (= 66)\) or \(\dfrac{16 + 15 + 3 + 2 + 9 + x}{6} = 11\) | M1 |
| \(16 + 15 + 3 + 2 + 9 + x = \text{``}{66}\text{''}\) oe eg \(45 + x = \text{``}{66}\text{''}\) or \(\text{``}{66}\text{''} - (16 + 15 + 3 + 2 + 9)\) | M1 |
| Correct answer scores full marks (unless from obvious incorrect working) Answer: 21 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for a correct calculation for the total or a correct equation for the last card eg using ‘\(x\)’
M1: for a correct equation for ‘\(x\)’ with no fraction or a correct calculation for the number on the last card
A1: if the answer line is blank, check the card