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primary 6 | Maths | Ratio
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BJX
BJX

primary 6 chevron_right Maths chevron_right Ratio chevron_right Singapore

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Date Posted: 2 years ago
Views: 578
sstrike
Sstrike
2 years ago
* total unchanged - internal transfer
* backwards

In the end
M : L : T = 4u : 1u : 5u
At first
M : L : T = 4u - $2.70 : u + $2.70 : 5u

4u - $2.70 = u+$2.70 + $5.40

u = (2×$2.70 + $5.40)÷3 = $3.60

4u-2.7 = 4×$3.60 - $2.70 = $11.70 (Ans)

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Mimosa
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1633 answers (A Helpful Person)
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sstrike
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5318 answers (A Helpful Person)
total unchanged - internal transfer
BJX
BJX
2 years ago
Hi. Why do we minus $2.70 from Miram instead of add at the end. Doesn't Miram has $2.70 more than Liying?