Pail D has thrice as much water as Pail C. If Cody adds 0.3 ℓ of water to Pail D and 2.6 ℓ of water to Pail C, both pails will have the same volume of water. Find the volume of water in Pail D at first.
| |
C |
D |
| Before |
1 u |
3 u |
| Change |
+ 2.6 |
+ 0.3 |
| After |
1 u + 2.6 |
3 u + 0.3 |
Both pails have the same volume of water in the end.
3 u + 0.3 = 1 u + 2.6
3 u - 1 u = 2.6 - 0.3
2 u = 2.3
1 u = 2.3 ÷ 2 = 1.15
Volume of water in Pail D at first
= 3 u
= 3 x 1.15
= 3.45 ℓ
Answer(s): 3.45 ℓ
