Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Ratio
One Answer Below
Anyone can contribute an answer, even non-tutors.
Hi help to show me the working
Thank you
Date Posted: 5 years ago
Views: 411
Girls = 40% = 4/10
So after the group of boys joined,
girls → 4 units, boys → 6 units
Total →10 units
Ratio of girls to boys = 4 : 6
Previously, ratio of girls to boys = 4 : 5
So since number of girls did not change,
Number of boys increased by 1 unit.
Percentage increase of boys = 1 unit / 5 units x 100%
= 1/5 x 100%
= 20%
So after the group of boys joined,
girls → 4 units, boys → 6 units
Total →10 units
Ratio of girls to boys = 4 : 6
Previously, ratio of girls to boys = 4 : 5
So since number of girls did not change,
Number of boys increased by 1 unit.
Percentage increase of boys = 1 unit / 5 units x 100%
= 1/5 x 100%
= 20%
Understand
Thank you very much
Thank you very much
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this helps
Date Posted:
5 years ago
360 Tutoring Program