beth652019 beth652019

04-02-2020
Mathematics

contestada

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.

Respuesta :

Abdullah007 Abdullah007

04-02-2020

Answer:

ratio= 20:60

20+60=80

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