Pls help with this question Would really appreciate, thank you:)

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primary 6 | Maths | Speed
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primary 6 Maths Speed Singapore

Pls help with this question
Would really appreciate, thank you:)

Date Posted: 2 years ago

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Fraction for 357 girls = 1/5 - 1/2 × 1/6 = 7/60 = 357/3060
Ans: 3060

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Date Posted: 2 years ago

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John

2 years ago

Need a clearer explanation

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Date Posted: 2 years ago

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Total same.

G : B : Total
1 : 4 : 5
6 : 24 : 30

S : NS : Total
1 : 5 : 6
5 : 25 : 30

GS = BS = 5u ÷ 2 = 2.5u
GNS = 6u - 2.5u = 3.5u = 357
1u = 102
30u = 3060 (Ans)

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Date Posted: 2 years ago

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