There was 7.1 ℓ of water in a tank and 2.1 ℓ of water in a pail. Perry then poured in an equal volume of water into each container. Now, the volume of water in the tank is 3 times in the pail. How much water did Perry pour into each container?
| |
Basin |
Pail |
Difference |
| Before |
7.1 ℓ |
2.1 ℓ |
5 ℓ |
| Change |
+ ? |
+ ? |
|
| After |
3 u |
1 u |
2 u |
Difference in the volume of water between the tank and the pail
= 7.1 - 2.1
= 5 ℓ
Since Perry poured in an equal volume of water into each container, the difference in the volume of water at first and in the end remains the same.
2 u = 5
1 u = 5 ÷ 2 = 2.5
Volume of water that Perry poured into each container
= 1 u - 2.1
= 2.5 - 2.1
= 0.4 ℓ
Answer(s): 0.4 ℓ
