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primary 6 | Maths | Ratio
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Ashiq
Ashiq

primary 6 chevron_right Maths chevron_right Ratio chevron_right Singapore

Pls help

Date Posted: 4 years ago
Views: 384
snell
Snell
4 years ago
p : a = 2 : 9

o : a = 2 : 3 = 6 : 9

nos.
a: 9u
o: 6u
p: 2u

(a)
o : a : p = 6 : 9 : 2



(b)
at first
a: 9u
o: 6u
p: 2u


after
a: 9u-150
o: 6u
p: 2u


2 x (9u-150) = 8u
1u = 30

a: 9u-150 = 120
o: 6u = 180
p: 2u = 60

60 more o than a


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Christmas MT
Christmas Mt's answer
3275 answers (A Helpful Person)
1st
Hope this helps!

Try using a model to help visualise the ratios! It can be really helpful! Afterwards, using your understanding of ratios, combine the 2 ratios into 1 expanded ratio together:)
Ashiq
Ashiq
4 years ago
Thank You