A container contained 4.3 ℓ more water than a pail. After some water was poured from the container to the pail, both the container and the pail had 6 ℓ of water each. How much water was there in the pail at first?
|
Container |
Pail |
Total |
Before |
1 u + 4.3 |
1 u |
12 |
Change |
- ? |
+ ? |
|
After |
6 |
6 |
12 |
Volume of water in the pail = 1 u
Volume of water in the container = 1 u + 4.3
Total volume of water
= 1 u + 1 u + 4.3
= 2 u + 4.3
Total volume of water
= 2 x 6
= 12 ℓ
When water is poured from the container to the pail, the total volume remains unchanged.
2 u + 4.3 = 12
2 u = 12 - 4.3
2 u = 7.7
1 u = 7.7 ÷ 2 = 3.85
Volume of water in the pail at first = 3.85 ℓ
Answer(s): 3.85 ℓ