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Question
primary 6 | Maths
| Ratio
2 Answers Below
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* 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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