Foundation November 2018 Unit 2 Q6
6.
(a) Efa thinks of two whole numbers.
She multiplies her numbers together.
She then adds 12.
The answer is 120.
What two numbers could Efa have been thinking about? [2]
She multiplies her numbers together.
She then adds 12.
The answer is 120.
What two numbers could Efa have been thinking about? [2]
Efa’s two numbers could be …………… and ……………
(b) Jac thinks of a number.
25% of his number is 35.
What is \(\dfrac{1}{10}\) of Jac’s number?
You must show all your working. [3]
25% of his number is 35.
What is \(\dfrac{1}{10}\) of Jac’s number?
You must show all your working. [3]
\(\dfrac{1}{10}\) of Jac’s number is ……………
| Scheme | Marks | Comments |
|---|---|---|
| 1 and 108 OR 2 and 54 OR 3 and 36 OR 4 and 27 OR 6 and 18 OR 9 and 12 | B2 | B1 for 108 and attempting to find two numbers which multiply to give 108. |
| Scheme | Marks | Comments |
|---|---|---|
| 35 × 4 (=140) | M1 | |
| ÷ 10 | M1 | F.T. ‘their 140’ provided not 35. |
| (=)14 | A1 | C.A.O. |
6.(b) Alternative method
| Scheme | Marks | Comments |
|---|---|---|
| 35 ÷ 5 × 2 | M2 | |
| (=) 14 | A1 | C.A.O. |