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primary 5 | Maths | Rate & Ratio
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QiQi
QiQi

primary 5 chevron_right Maths chevron_right Rate & Ratio chevron_right Singapore

Pls help.

Date Posted: 3 years ago
Views: 474
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sstrike
Sstrike's answer
5380 answers (A Helpful Person)
【diff unchanged】

Now
M : M's : D = 1 : 4 : 3 = 1 : 4 : 3

4 yrs later
M : M's : D = 1 : 2 : 1 = 3 : 6 : 3

3-1 = 6-4 = 2

4÷2 = 2

6×2 = 12 (Ans)