Pail Y has thrice as much water as Pail X. If Ethan adds 0.5 ℓ of water to Pail Y and 1.6 ℓ of water to Pail X, both pails will have the same volume of water. Find the volume of water in Pail Y at first.
| |
X |
Y |
| Before |
1 u |
3 u |
| Change |
+ 1.6 |
+ 0.5 |
| After |
1 u + 1.6 |
3 u + 0.5 |
Both pails have the same volume of water in the end.
3 u + 0.5 = 1 u + 1.6
3 u - 1 u = 1.6 - 0.5
2 u = 1.1
1 u = 1.1 ÷ 2 = 0.55
Volume of water in Pail Y at first
= 3 u
= 3 x 0.55
= 1.65 ℓ
Answer(s): 1.65 ℓ
