Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.


Primary 3 | Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

Primary 3 chevron_right Maths chevron_right Singapore

need help

Date Posted: 4 months ago
Views: 56
4 months ago
8 small balls (or circles , if you prefer) are balanced by 1 big ball + 2 small balls

Notice that the 2 small balls on the right will be balanced by 2 identical small balls on the left?

8 - 2 = 6

So the remaining 6 small identical balls on the left are balanced by the big ball.

This tells you that weight of 1 big ball = weight of 6 small balls.

Since you already know 1 big ball weighs 240g,

Then 6 small balls weigh 240g.

1 small ball = 240g ÷ 6 = 40g

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
yb ʕ •ᴥ•ʔ
Yb ʕ •ᴥ•ʔ's answer
11 answers (A Helpful Person)
hope this helps! :>