Apologies, I am not at all a Maths whizz but am trying to help my son (age 11) with a Maths problem. I don't just need the answer, I would also like to understand the method to find it so I can explain it.
Here is the question:
Mark is running steadily round a track. He completes 5 laps in 4 minutes.Julian is also running steadily round the track, in the same direction. He completes 4 laps in5 minutes.
a) At 10:00am exactly, Julian is just ahead of Mark on the track. By 10:15, how many timeswill Mark have overtaken Julian?
On another day, Mia is running steadily around the track. She does one lap every 60seconds. Gareth is running steadily round the track in the opposite direction.
b) If they meet each other every 24 seconds, how long does it take Gareth to do a lap of thetrack?
Can anyone help??