A bottle contained 4.3 ℓ more water than a can. After some water was poured from the bottle to the can, both the bottle and the can had 7 ℓ of water each. How much water was there in the can at first?
|
Bottle |
Can |
Total |
Before |
1 u + 4.3 |
1 u |
14 |
Change |
- ? |
+ ? |
|
After |
7 |
7 |
14 |
Volume of water in the can = 1 u
Volume of water in the bottle = 1 u + 4.3
Total volume of water
= 1 u + 1 u + 4.3
= 2 u + 4.3
Total volume of water
= 2 x 7
= 14 ℓ
When water is poured from the bottle to the can, the total volume remains unchanged.
2 u + 4.3 = 14
2 u = 14 - 4.3
2 u = 9.7
1 u = 9.7 ÷ 2 = 4.85
Volume of water in the can at first = 4.85 ℓ
Answer(s): 4.85 ℓ