Kenneth Cheong's answer to Mike's Primary 6 Maths Percentage Singapore question.
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Let x be the no of women on Mon.
0.375x = 0.2 (2001 - x)
0.375x = 400.2 - 0.2x
0.575x = 400.2
Tue has 0.625x women
Ans = 400.2 ÷ 0.575 × 0.625 = 435
0.375x = 0.2 (2001 - x)
0.375x = 400.2 - 0.2x
0.575x = 400.2
Tue has 0.625x women
Ans = 400.2 ÷ 0.575 × 0.625 = 435
Date Posted:
4 years ago
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