- #1
Couperin
- 59
- 0
My mum told me this one, it's pretty cool :).
The red car and the blue car are having a race. The red car, which has a top speed of 70mph has a 20 minute head start over the blue car, which has a top speed of 80mph.
Assuming that top speeds are reached the very instant a car starts, and that the top speeds are constant, how long will it take, in minutes, for the blue car to catch up with the red car?
The red car and the blue car are having a race. The red car, which has a top speed of 70mph has a 20 minute head start over the blue car, which has a top speed of 80mph.
Assuming that top speeds are reached the very instant a car starts, and that the top speeds are constant, how long will it take, in minutes, for the blue car to catch up with the red car?