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primary 6 | Maths
| Ratio
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Plz help with ratio method. Thx a lot!
Date Posted: 2 years ago
Views: 367
ratio method
at first
F:NF : diff = 3:5:2 = 6:10:4
after
F:NF : diff = 5:9:4
total at first
F+NF = 10+6 = 16
sold
6-5 = 10-9 = 1
2×1 = 2
total : sold
= 16 : 2 = 8 : 1 = 240 : 30
Ans: 30
at first
F:NF : diff = 3:5:2 = 6:10:4
after
F:NF : diff = 5:9:4
total at first
F+NF = 10+6 = 16
sold
6-5 = 10-9 = 1
2×1 = 2
total : sold
= 16 : 2 = 8 : 1 = 240 : 30
Ans: 30
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