Foundation June 2022 Paper 3 Q15
15
(a) Work out the multiple of 60 that is closest to 400 [2 marks]
(b) Work out the highest common factor (HCF) of 12 and 18 [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| 300 or 360 or 480 or 7 (\(\times\) 60) or 7th or any 3 multiples of 60 that are greater than 60 | M1 | |
| 420 | A1 |
Additional guidance
| 420 in working with answer 7 or 7th or \(7 \times 60\) | M1A0 |
| Answer | Mark | Comments |
|---|---|---|
| 6 | B2 | B1 answer 2 or answer 3 or answer 2 (\(\times\)) 3 or answer 2, 6 or answer 3, 6 or answer 2, 3, 6 or (1) 2 3 4 6 (12) or (1) 2 3 6 9 (18) or (12 =) 2 (\(\times\)) 2 (\(\times\)) 3 or \(2^2\) (\(\times\)) 3 or (18 =) 2 (\(\times\)) 3 (\(\times\)) 3 or 2 (\(\times\)) \(3^2\) |
Additional guidance
| If correct answer 6 is obtained from a list of factors, then the list must contain no errors | |
| For use of prime factors, allow in repeated division or a factor tree or a Venn diagram or inclusion of 1 | |
| List of factors may be seen in factor pairs (allow repeats) eg \((1 \times 12)\quad 2 \times 6 \quad 3 \times 4\) | B1 |