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primary 5 | Maths | Rate & Ratio
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Yalinee
Yalinee

primary 5 chevron_right Maths chevron_right Rate & Ratio chevron_right Singapore

Money question p5 pls help to solve

Date Posted: 2 years ago
Views: 349
Christmas MT
Christmas MT
2 years ago
do u know how to use algebra? if not v hard explain
Yalinee
Yalinee
2 years ago
No my kid in p5 , algebra not in their syllabus
sstrike
Sstrike
2 years ago
Total unchanged - internal transfer concept
Backwards method

P5 learned ratio

Try to list out the before(at first)/ after (in the end ) table

In the end
A:B:B-A : T =1:5:4:6=1u:5u:4u : 6u

At first
A:B:A-B : T =1u+30:5u-30:60-4u : 6u

60-4u=14 → u=11.5 → 6u=69 (Ans)


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Blob fish
Blob Fish's answer
110 answers (A Helpful Person)
1st
I assume you learnt units already?
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sstrike
Sstrike's answer
5377 answers (A Helpful Person)
【total unchanged】
【backwards】