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Question
primary 6 | Maths
| Percentage
No Answers Yet
Help Richelle! Anyone can contribute an answer, even non-tutors.
pls help me ... asap... thank you
Date Posted: 4 years ago
Views: 239
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
.
.
.
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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