4MA0 Foundation January 2018 Paper 1R Q8
8
(a) Write these numbers in order of size.
Start with the smallest number.
\[\dfrac{3}{8} \qquad 38\% \qquad 0.146 \qquad \dfrac{1}{3}\] (2)
Start with the smallest number.
\[\dfrac{3}{8} \qquad 38\% \qquad 0.146 \qquad \dfrac{1}{3}\] (2)
Two factors of 24 have a sum of 18
(b) Find these two factors. (2)
| Scheme | Marks |
|---|---|
| 0.375, 0.38, 0.146, 0.33(3..) | M1 |
| 0.146, \(\dfrac{1}{3}\), \(\dfrac{3}{8}\), 38% | A1 |
| (2) |
Notes
M1: converts to common form (at least one correct)
A1: (SC B1 for any three in the correct order)
| Scheme | Marks |
|---|---|
| 1, 2, 3, 4, 6, 8, 12, 24 Answer: 12 and 6 | B2 |
| (2) |
Notes
B2: 12 and 6
(B1 \(x + y = 18\) where one of \(x\), \(y\) is a factor of 24 or any two factors of 24 which do not sum to 18)