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primary 5 | Maths | Whole Numbers
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Bliss
Bliss

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

Can someone help with explanation. Thanks a million

Date Posted: 1 year ago
Views: 177

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AC Lim
Ac Lim's answer
13087 answers (A Helpful Person)
1st
Hope this helps
Bliss
Bliss
1 year ago
Thank you teacher!
JustDoingMath
JustDoingMath
1 year ago
Explanation and method is correct BUT there was careless mistake where question says 5:2 but working wrote 5:3 , as well as there working showing 75 : 45 but used 42 instead when minusing :(

Using same method, correct answer would be
5:2 —> 50:20 where diff is 30
so take any of their CURRENT age ( S: 42 or D: 12 )
And minus it from the supposed age , either
50-42=8 or 20-12=8

So answer would be in 8 years time. :D
AC Lim
AC Lim
1 year ago
Ooops, Thank you for point out the mistake.
Bliss
Bliss
1 year ago
Thank you for the correction!
I got the concept.
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AC Lim
Ac Lim's answer
13087 answers (A Helpful Person)
Correction.