Higher November 2017 Paper 6 Q2
2 Carla runs every 3 days.
She swims every Thursday.
On Thursday 9 November, Carla both runs and swims.
What will be the next date on which she both runs and swims? [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 30 November | 3 | B2 for 21 identified as LCM or answer 30 OR M1 for listing at least four multiples of 3 and at least three multiples of 7 OR M1 for listing/identifying at least four dates for running and at least three dates for swimming | 3, 6, 9, 12, 15, 18, 21, … 7, 14, 21, … 12, 15, 18, 21, … 16, 23, 30, … |
Notes
(corrected from the printed mark scheme: the last method mark says “at least three dates for cycling”; the question is about swimming)