Ds - year 6 - has a maths challenge homework
One of questions two people swim to and fro across a pool - they start to swim from the middle of adjacent sides at exactly the same time. They swim at the same rate, How far do they swim before they meet
There's then a diagram of a pool which is 70 m long and 30 m wide
Possible answers are a) they never meet b) 100m c) 105m d) 1050m e) 2100
We think 2100 but not sure how or why...
Any suggestions welcome!
THanks