AC Lim's answer to Rianna's Primary 6 Maths Speed Singapore question.

Ask ManyTutors
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
AC Lim
Ac Lim's answer
13088 answers (A Helpful Person)
Another way to solve this equation is time both side with 90.
So distance A to M = 60km

Hope it help.