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primary 6 | Maths | Percentage
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Lynn
Lynn

primary 6 chevron_right Maths chevron_right Percentage chevron_right Singapore

Pls explain

Date Posted: 4 years ago
Views: 413
snell
Snell
4 years ago
at first
A: 10u + 50
B: 10u


after
A: 8u + 40
B: 7u


7u + 48 = 8u + 40
1u = 8


at first total $210

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Zhiqiang Zheng
Zhiqiang Zheng's answer
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