At first, Barrel R and Barrel S contained 0.7 ℓ and 3.2 ℓ of water respectively. Some water from Barrel S was poured into Barrel R with no water spilling over. In the end, there was as much water in Barrel R as in Barrel S. How much water was poured from Barrel S to Barrel R?
|
Barrel R |
Barrel S |
Difference |
Before |
0.7 ℓ |
3.2 ℓ |
3.9 ℓ |
Change |
+ 1.25 ℓ |
- 1.25 ℓ |
|
After |
1.95 ℓ |
1.95 ℓ |
|
Difference in the volume of water in Barrel R and Barrel S
= 3.2 - 0.7
= 2.5 ℓ
Volume of water poured from Barrel S to Barrel R
= 2.5 ÷ 2
= 1.25 ℓ
Answer(s): 1.25 ℓ