Pail K has five times as much water as Pail J. If Ian adds 1.2 ℓ of water to Pail K and 1.8 ℓ of water to Pail J, both pails will have the same volume of water. Find the volume of water in Pail K at first.
| |
J |
K |
| Before |
1 u |
5 u |
| Change |
+ 1.8 |
+ 1.2 |
| After |
1 u + 1.8 |
5 u + 1.2 |
Both pails have the same volume of water in the end.
5 u + 1.2 = 1 u + 1.8
5 u - 1 u = 1.8 - 1.2
4 u = 0.6
1 u = 0.6 ÷ 4 = 0.15
Volume of water in Pail K at first
= 5 u
= 5 x 0.15
= 0.75 ℓ
Answer(s): 0.75 ℓ
