AC Lim's answer to IDK's Primary 6 Maths Ratio Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
AC Lim
Ac Lim's answer
13112 answers (A Helpful Person)
1st
Backward calculate. In the end all same at 84L (336÷4=84)