At first, Tank Y and Tank Z contained 0.5 ℓ and 2.1 ℓ of water respectively. Some water from Tank Z was poured into Tank Y with no water spilling over. In the end, there was as much water in Tank Y as in Tank Z. How much water was poured from Tank Z to Tank Y?
|
Tank Y |
Tank Z |
Difference |
Before |
0.5 ℓ |
2.1 ℓ |
2.6 ℓ |
Change |
+ 0.8 ℓ |
- 0.8 ℓ |
|
After |
1.3 ℓ |
1.3 ℓ |
|
Difference in the volume of water in Tank Y and Tank Z
= 2.1 - 0.5
= 1.6 ℓ
Volume of water poured from Tank Z to Tank Y
= 1.6 ÷ 2
= 0.8 ℓ
Answer(s): 0.8 ℓ