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Question
primary 6 | Maths
| Ratio
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Hi help to show me the working
Thank you
Date Posted: 5 years ago
Views: 407
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
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Hope this helps
Date Posted:
5 years ago
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