At first, Barrel C and Barrel D contained 0.5 ℓ and 3.7 ℓ of water respectively. Some water from Barrel D was poured into Barrel C with no water spilling over. In the end, there was as much water in Barrel C as in Barrel D. How much water was poured from Barrel D to Barrel C?
|
Barrel C |
Barrel D |
Difference |
Before |
0.5 ℓ |
3.7 ℓ |
4.2 ℓ |
Change |
+ 1.6 ℓ |
- 1.6 ℓ |
|
After |
2.1 ℓ |
2.1 ℓ |
|
Difference in the volume of water in Barrel C and Barrel D
= 3.7 - 0.5
= 3.2 ℓ
Volume of water poured from Barrel D to Barrel C
= 3.2 ÷ 2
= 1.6 ℓ
Answer(s): 1.6 ℓ