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primary 6 | Maths | Ratio
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Daisy
Daisy

primary 6 chevron_right Maths chevron_right Ratio chevron_right Singapore

Can help pls

Date Posted: 2 years ago
Views: 202
John Oon
John Oon
2 years ago
In the original ratio 9u : 2u we use u (unit) to represent. In the new ratio 10p : 1p we use p (part) to represent.
Daisy
Daisy
2 years ago
Thank you sir for the explanation
sstrike
Sstrike
2 years ago
80+30 = 110

after
J:M:T = 10u : 1u : 11u

at first
J:M:T = 9u+90 : 2u+20 : 11u+110

for J
9u+90-80 = 10u ⇨ u = 10
for M
2u+20-30 = 1u ⇨ u = 10

(a)
9u+90 = $180 (Ans)

(b)
1u = $10 (Ans)

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John Oon
John Oon's answer
255 answers (Tutor Details)
1st
Daisy
Daisy
2 years ago
Thank you!
John Oon
John Oon
2 years ago
Welcome
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sstrike
Sstrike's answer
5371 answers (A Helpful Person)
Alternative
(Unit only w comparing the total change)
Daisy
Daisy
2 years ago
Thank you sir Sstrike