AC Lim's answer to Tyler soliven's Primary 6 Maths Measurement Singapore question.

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AC Lim
Ac Lim's answer
12082 answers (A Helpful Person)
1st
Different speed between Tan and Lee
= 108-84= 24km/h
1h—->24km apart
Or
24km —->1h
80km —-> 80/24= 3 1/3 hour (3.33333hours)