Photo AI
Carla runs every 3 days - OCR - GCSE Maths - Question 2 - 2017 - Paper 1
Question 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?
Worked Solution & Example Answer:Carla runs every 3 days - OCR - GCSE Maths - Question 2 - 2017 - Paper 1
Step 1
Identify the running schedule
Answer
Carla runs every 3 days. Starting from the date when she both runs and swims, which is 9 November, we can list her running days:
- 9 November (Day 0)
- 12 November (Day 3)
- 15 November (Day 6)
- 18 November (Day 9)
- 21 November (Day 12)
- 24 November (Day 15)
- 27 November (Day 18)
- 30 November (Day 21)
Step 2
Step 3
Determine the next date she runs and swims
Answer
Reviewing the lists:
- The next Thursday after 9 November is 16 November; she runs on 15 November.
- The following Thursday is 23 November; she runs on 21 November.
- The Thursday after that is 30 November, which is also a running day.
Thus, the next date when Carla both runs and swims is 30 November.