Mathaddict100's answer to Matthew's Secondary 2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Mathaddict100
Mathaddict100's answer
534 answers (A Helpful Person)
1st
These are the steps involved..Hope it helps.. :)
Mathaddict100
Mathaddict100
5 years ago
The answer is 27m (estimated to 2signf...