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primary 6 | Maths
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primary 6 Maths Singapore

Hi can anyone help?
Thanks

Date Posted: 4 years ago

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Snell

4 years ago

total: 84

at first
L: 3u
K: 84-3u

L to K
L: 2u
K: 84-2u

K to L
L: 2u + (84-2u)x2/5 = (168 + 6u)/5
K: (84-2u)x3/5 = (252-6u)/5

(252-6u)/5 = (168 + 6u)/5
1u = 7

L has 21 at first

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Date Posted: 4 years ago

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