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primary 5 | Maths
| Fractions
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I need help for question 7. It is a mixture of volume and fractions. Help would be appreciated!
Date Posted: 5 years ago
Views: 327
Volume of water at the start
= 4/5 x 30 x 30 x 30
= 24 x 30 x 30
= 720 x 30
= 21600 cm3
Volume of water to be poured into small container
= 15 x 10 x 7
= 150 x 7
= 1050 cm3
Volume of water left
= 21600 - 1050
= 20550 cm3
Since 1000 cm3 is 1 litre, volume of water left = 20550 / 1000 = 20.55 litres.
Assume no water is spilled.
= 4/5 x 30 x 30 x 30
= 24 x 30 x 30
= 720 x 30
= 21600 cm3
Volume of water to be poured into small container
= 15 x 10 x 7
= 150 x 7
= 1050 cm3
Volume of water left
= 21600 - 1050
= 20550 cm3
Since 1000 cm3 is 1 litre, volume of water left = 20550 / 1000 = 20.55 litres.
Assume no water is spilled.
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