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primary 5 | Maths
| Fractions
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Date Posted: 5 years ago
Views: 387
capacity = 50x40x20 = 40 000 cm³
3/5 full = 3/5 x 40 000
= 24 000 cm³
8 L = 8000 cm³
vol of jug: u
8000 + 5u = 24 000
u = 3200 cm³
(a)
vol of each jug is 3200 cm³
(b)
3 jugs = 3200 x 3 = 9600 cm³
need 9600-8000 = 1600 cm³ more
...
3/5 full = 3/5 x 40 000
= 24 000 cm³
8 L = 8000 cm³
vol of jug: u
8000 + 5u = 24 000
u = 3200 cm³
(a)
vol of each jug is 3200 cm³
(b)
3 jugs = 3200 x 3 = 9600 cm³
need 9600-8000 = 1600 cm³ more
...
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Date Posted:
5 years ago
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