4MA0 Foundation January 2017 Paper 1 Q10
10 Here is a number machine.
(a) Work out the output when the input is −2 (1)
(b) Work out the input when the output is 24 (2)
| Scheme | Marks |
|---|---|
| −30 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 24 ÷ 3 + 8 | M1 |
| 16 | A1 |
| (2) | |
| (3 marks) |
Notes
M1: for an inverse operation (+8 or ÷3)
A1: 16