Photo AI
On Monday, 12 people took 5 hours to clean a number of cars - Edexcel - GCSE Maths - Question 12 - 2021 - Paper 3
Question 12
On Monday, 12 people took 5 hours to clean a number of cars. On Tuesday, 15 people cleaned the same number of cars. Assuming that all the people worked at the same ... show full transcript
Worked Solution & Example Answer:On Monday, 12 people took 5 hours to clean a number of cars - Edexcel - GCSE Maths - Question 12 - 2021 - Paper 3
Step 1
How might this affect the time taken for the 15 people to clean the cars?
Answer
The assumption that all people work at the same rate may not hold true for various reasons.
If the 15 people are less efficient for any reason, such as:
- They could take more time if they worked at a slower rate.
- The time taken might increase if they cannot manage the task effectively in a larger group.
In a situation where there are more people:
- The actual time may not decrease proportionally as assumed, so it could still take them longer than initially calculated.