Pail D has five times as much water as Pail C. If Pierre adds 1.1 ℓ of water to Pail D and 2.1 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 |
5 u |
Change |
+ 2.1 |
+ 1.1 |
After |
1 u + 2.1 |
5 u + 1.1 |
Both pails have the same volume of water in the end.
5 u + 1.1 = 1 u + 2.1
5 u - 1 u = 2.1 - 1.1
4 u = 1
1 u = 1 ÷ 4 = 0.25
Volume of water in Pail D at first
= 5 u
= 5 x 0.25
= 1.25 ℓ
Answer(s): 1.25 ℓ