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primary 6 | Maths
| Percentage
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Pls help with these two questions asap
Date Posted: 4 years ago
Views: 271
28.
y ribbons: 5u
p ribbons: 45
1/3 of p ribbons = 45/3 = 15
60% of y ribbons = 3u
3u = 15 + 33
u = 16
total of 16x5 = 80 y ribbons.
29.
vol. of box = 60x50x30 = 90 000 cm³
vol. of 2 cylinders = 2 x π x 14² x 30
= 11760π
= 11760 x 22/7
= 36 960 cm³
remaining capacity
= 90 000 - 36 960
= 53 040 cm³
...
y ribbons: 5u
p ribbons: 45
1/3 of p ribbons = 45/3 = 15
60% of y ribbons = 3u
3u = 15 + 33
u = 16
total of 16x5 = 80 y ribbons.
29.
vol. of box = 60x50x30 = 90 000 cm³
vol. of 2 cylinders = 2 x π x 14² x 30
= 11760π
= 11760 x 22/7
= 36 960 cm³
remaining capacity
= 90 000 - 36 960
= 53 040 cm³
...
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