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Primary School
Language & Humanities
P5 Constant Difference
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TOPIC: P5 Constant Difference
P5 Constant Difference
7 years 7 months ago
#1
Xiao Hei
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Karma: 0
Hi,
I have this maths question that need help to solve.
Question:
The ratio of the age of Mike and Paul is 2:11. 4 years later, the ratio of the age of Mike to Paul is 5:23. How old is Mike now?
Hope there is someone to help solving this question, with workings indicated. Thank you.
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Re:Pri 5 - Maths Ratio
7 years 7 months ago
#2
Chris Rogers
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Karma: 201
The ratio of the age of Mike and Paul is 2:11. 4 years later, the ratio of the age of Mike to Paul is 5:23. How old is Mike now?
Constant Difference
Now
M : P
2 : 11 (Diff 9units)
4 : 22 (Diff 18units)
4 Years Later
M : P
5 : 23 (Diff 18units)
1unit --> 4 years
Mike now is 4units --> 4 x 4years = 16 years
The administrator has disabled public write access.
Re:P5 Constant Difference
7 years 7 months ago
#3
Xiao Hei
Offline
Karma: 0
Hi Chris Roger,
Thanks for your help in solving this question.
The administrator has disabled public write access.
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