Angie's answer to shu's Primary 6 Maths Ratio Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
You can either use algebra (answer above) or guess and check (answer below). The key is to understand the concept of average score. Hope it helps!
Date Posted:
2 years ago
360 Tutoring Program