Pls help with explaination

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primary 6 | Maths | Data Analysis
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primary 6 Maths Data analysis Singapore

Pls help with explaination

Date Posted: 5 years ago

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AC Lim

5 years ago

9u - 4 = 6u + 20
3u = 24
u=8
Total boxes= 8

Snell

5 years ago

method 1

no. of boxes: u

( pack 9bks )
total no. of bks = 9u - 4

( pack 6bks )
total no. of bks = 6u + 20

9u - 4 = 6u + 20
u = 8

8 boxes

method 2
no. of boxes = (20+4)/(9-6) = 8

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Date Posted: 5 years ago

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