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primary 5 | Maths | Whole Numbers
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Afiqah
Afiqah

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

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Date Posted: 1 month ago
Views: 16
snell
Snell
1 month ago
before
r beads: 2u
g beads: u

after
r beads: 2u
g beads: u-30

2u = 4 . (u-30)
u = 60

(a)
at first, total = 3 . 60 = 180 beads

(b)
60 +30 = 90 more red beads in the end


...

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Xu Weihan
Xu Weihan's answer
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