Foundation June 2019 Paper 1 Q17
17 In a box,
number of red buttons : number of blue buttons = 5 : 3
number of blue buttons : number of green buttons = 1 : 2
There are 48 green buttons in the box.
Work out the number of red buttons in the box.
(4)
| Scheme | Marks |
|---|---|
| 48 ÷ 2 (=24) | M1 |
| “24” ÷ 3 = 8 | M1 |
| “8” × 5 | M1 |
| 40 | A1 |
| (4) | |
| (4 marks) |
Notes
M1: dep (M2 for “24” \(\times \dfrac{5}{3}\))
M1: dep (M2 for “24” \(\times \dfrac{5}{3}\))
Alternative scheme
| Scheme | Marks |
|---|---|
| (5) : 3 : 6 oe | M1 |
| 48 ÷ 6 (=8) oe | M1 |
| “8” × 5 oe | M1 |
| 40 | A1 |
Notes
M1: dep (M2 for \(48 \times \dfrac{5}{6}\))
M1: dep (M2 for \(48 \times \dfrac{5}{6}\))