sstrike's answer to Felice's Primary 6 Maths Percentage Singapore question.
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Algebra
Ans: 150
5b+5g = 240
⇨ b+g = 240÷5 = 48
In the end
⅖ B + ⅘ G = 132
2b+4g = 132
⇨ b+2g = 66
⇨ b+g = 48
g = 66-48 = 18
b = 48-g = 48-18 = 30
5b = 5×30 = 150 (Ans)
Ans: 150
5b+5g = 240
⇨ b+g = 240÷5 = 48
In the end
⅖ B + ⅘ G = 132
2b+4g = 132
⇨ b+2g = 66
⇨ b+g = 48
g = 66-48 = 18
b = 48-g = 48-18 = 30
5b = 5×30 = 150 (Ans)
Date Posted:
3 years ago
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