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primary 5 | Maths | Whole Numbers
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Artificialintelligence#1
Artificialintelligence#1

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

Pls help by Friday. Thx in advance

Date Posted: 4 years ago
Views: 298
sstrike
Sstrike
4 years ago
3u=2(110+22) ⇨ u=88
(a) u+110=198【Amy】
(b) 198+44 = 242【Bala】

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TIEW KAI JIE NICHOLAS
Tiew Kai Jie Nicholas's answer
107 answers (Tutor Details)
1st
Keep in mind that regardless of how many they give each other, the total number of cards is the same.
Let The number of cards Amy have initially be 1u.
Amy received 22 cards from Bala.
Amy and Bala has (1u + 22) cards, since they have an equal number of cards.
Working backwards, Bala would have (1u + 22) + 22 = (1u + 44) cards

If Amy gave Bala 110 cards, Amy would left with
(1u - 110) cards.
Bala would end up with 4 x (1u -110) = (4u - 440) cards.
Since total number of cards is the same,
1u + 1u + 44 = 1u - 110 + 4u - 440
Artificialintelligence#1
Artificialintelligence#1
4 years ago
Thanks