JustDoingMath's answer to Emily's Primary 6 Maths Measurement Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
JustDoingMath
Justdoingmath's answer
24 answers (A Helpful Person)
1st
Since 40% is Uniform Group ,
60% would be sports + club
So
60% = 11+7
10% = 18÷6
= 3
40% = 3 x 4
= 12

So uniform group has 12 students , the bar graph will be until line 12.

Ask if you have any questions
Emily
Emily
2 years ago
Why 18÷3
JustDoingMath
JustDoingMath
2 years ago
Hi , sorry for the late reply.
18 ÷ 6 is because 18 students is in Sports and Clubs , which is 60% since 100% - 40% = 60%
So to find 40% , we can find 10% first by taking
18 ÷ 6 = 3 , then multiply 4 to find 40% , which is the number of students in uniform group.
Emily
Emily
2 years ago
Ok understand. Thanks a lot