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primary 6 | Maths | Data Analysis
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Brayden
Brayden

primary 6 chevron_right Maths chevron_right Data analysis chevron_right Singapore

Please teach me. Thanks

Date Posted: 5 years ago
Views: 335

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C Meen
C Meen's answer
81 answers (A Helpful Person)
1st
The question is incomplete. There are two scenarios that can fit all the sentences in the question, but yet end up with 2 difference answers.
Claudine Lim
Claudine Lim
5 years ago
For the second scenario at the bottom, the total number of people in room X should total up to 45+15=60 NOT 70
C Meen
C Meen
5 years ago
Oops. Your ans is good.
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Claudine Lim
Claudine Lim's answer
16 answers (Tutor Details)
tip: keep in mind that total = girls + boys and work towards reducing the equation to just 1 subject
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C Meen
C Meen's answer
81 answers (A Helpful Person)
Draw X boy, Y boy first. Then X girls. Then Y girls.