At first, Tank Q and Tank R contained 0.8 ℓ and 4.2 ℓ of water respectively. Some water from Tank R was poured into Tank Q with no water spilling over. In the end, there was as much water in Tank Q as in Tank R. How much water was poured from Tank R to Tank Q?
|
Tank Q |
Tank R |
Difference |
Before |
0.8 ℓ |
4.2 ℓ |
5 ℓ |
Change |
+ 1.7 ℓ |
- 1.7 ℓ |
|
After |
2.5 ℓ |
2.5 ℓ |
|
Difference in the volume of water in Tank Q and Tank R
= 4.2 - 0.8
= 3.4 ℓ
Volume of water poured from Tank R to Tank Q
= 3.4 ÷ 2
= 1.7 ℓ
Answer(s): 1.7 ℓ