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primary 6 | Maths | Percentage
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KKK
KKK

primary 6 chevron_right Maths chevron_right Percentage chevron_right Singapore

Pls help! Thanks!

Date Posted: 1 week ago
Views: 13
snell
Snell
1 week ago
b4
p: 3u (30%)
cc + m = 7u (70%)

after
p: 3u (20%)
cc + m = 7u + 190 - 40 = 7u + 150 (80%)

7u + 150 = 4 x 3u
u = 30


90 pies


ALT

after
p: 2u (20%)
cc + m: 8u (80%)

b4
p: 2u (30%)
cc + m = 8u - 190 + 40 = 8u - 150 (70%)

2u x 7 = (8u - 150) x 3
u = 45

90 pies


...

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sstrike
Sstrike's answer
120 answers (A Helpful Person)
1st
The total number of #Pie# is unchanged