Tank Q has five times as much water as Tank P. If Fred adds 0.7 ℓ of water to Tank Q and 1.7 ℓ of water to Tank P, both tanks will have the same volume of water. Find the volume of water in Tank Q at first.
| |
P |
Q |
| Before |
1 u |
5 u |
| Change |
+ 1.7 |
+ 0.7 |
| After |
1 u + 1.7 |
5 u + 0.7 |
Both tanks have the same volume of water in the end.
5 u + 0.7 = 1 u + 1.7
5 u - 1 u = 1.7 - 0.7
4 u = 1
1 u = 1 ÷ 4 = 0.25
Volume of water in Tank Q at first
= 5 u
= 5 x 0.25
= 1.25 ℓ
Answer(s): 1.25 ℓ
