At first, Barrel P and Barrel Q contained 0.3 ℓ and 1.3 ℓ of water respectively. Some water from Barrel Q was poured into Barrel P with no water spilling over. In the end, there was as much water in Barrel P as in Barrel Q. How much water was poured from Barrel Q to Barrel P?
|
Barrel P |
Barrel Q |
Difference |
Before |
0.3 ℓ |
1.3 ℓ |
1.6 ℓ |
Change |
+ 0.5 ℓ |
- 0.5 ℓ |
|
After |
0.8 ℓ |
0.8 ℓ |
|
Difference in the volume of water in Barrel P and Barrel Q
= 1.3 - 0.3
= 1 ℓ
Volume of water poured from Barrel Q to Barrel P
= 1 ÷ 2
= 0.5 ℓ
Answer(s): 0.5 ℓ