Jun Heng's answer to Nancy's Primary 6 Maths Percentage Singapore question.
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W : X = 2 : 3 = 4 : 6
Z : X = 1 : 2 = 3 : 6
W+X : Y+Z : Total = 1 : 1 : 2 = 10 : 10 : 20
Z : Y = 3 : 7
Y : Total = 7 : 20
Percentage = 7/20×100% = 35%
Z : X = 1 : 2 = 3 : 6
W+X : Y+Z : Total = 1 : 1 : 2 = 10 : 10 : 20
Z : Y = 3 : 7
Y : Total = 7 : 20
Percentage = 7/20×100% = 35%
Date Posted:
1 year ago
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