If a man walked 10 kilometres in 40 minutes, determine how
long would it take him to walk 6 kilometres.
You can divide or multiply the distance and the amount of time by the same amount, and the speed does not change.
Since the man walked 10 kilometres in 40 minutes, he walks at a speed of 1 kilometre in 4 minutes (divide each by 10).
Since he walks 1 kilometre in 4 minutes, we can find the amount of time it would take to walk 6 kilometres by multiplying 4 minutes by 6: 4 minutes 6 = 24 minutes.
So, it would take the man 24 minutes to walk 6 kilometres.