Question

Colin and Dan are marking exam papers. Each set takes Colin 20 minutes and Dan 1 hour. Express the times Colin and Dan take as a ratio.
Give your answer in its simplest form.

Answer 1

Colin took 20 minutes

Dan took 1 hour

1 hour =60 seconds

20: 60

1:3

Answer 2

time taken by Colin=20 mins

time taken by Dan=1 hour= 60 mins

=20:60

=1:3