At first, Pail Y and Pail Z contained 0.5 ℓ and 4.5 ℓ of water respectively. Some water from Pail Z was poured into Pail Y with no water spilling over. In the end, there was as much water in Pail Y as in Pail Z. How much water was poured from Pail Z to Pail Y?
|
Pail Y |
Pail Z |
Difference |
Before |
0.5 ℓ |
4.5 ℓ |
5 ℓ |
Change |
+ 2 ℓ |
- 2 ℓ |
|
After |
2.5 ℓ |
2.5 ℓ |
|
Difference in the volume of water in Pail Y and Pail Z
= 4.5 - 0.5
= 4 ℓ
Volume of water poured from Pail Z to Pail Y
= 4 ÷ 2
= 2 ℓ
Answer(s): 2 ℓ