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primary 6 | Maths | Percentage
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Richelle
Richelle

primary 6 chevron_right Maths chevron_right Percentage chevron_right Singapore

pls help me ... asap... thank you

Date Posted: 5 days ago
Views: 10
snell
Snell
5 days ago
even nos.
6 or 8 (guess & c)

A
avg: 68
total: 408 or 544

B
avg: 82
total: 492 or 656

difference is 656-544 = 112

8 pupils in each team



ALT

no. of pupils in each team: u
A
avg: 68

B
avg: 82

difference = 112
= 82 x u - 68 x u
= 14u

14u = 112
u = 8

8 pupils in each team

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