Tank M has thrice as much water as Tank L. If Harry adds 0.5 ℓ of water to Tank M and 2.8 ℓ of water to Tank L, both tanks will have the same volume of water. Find the volume of water in Tank M at first.
| |
L |
M |
| Before |
1 u |
3 u |
| Change |
+ 2.8 |
+ 0.5 |
| After |
1 u + 2.8 |
3 u + 0.5 |
Both tanks have the same volume of water in the end.
3 u + 0.5 = 1 u + 2.8
3 u - 1 u = 2.8 - 0.5
2 u = 2.3
1 u = 2.3 ÷ 2 = 1.15
Volume of water in Tank M at first
= 3 u
= 3 x 1.15
= 3.45 ℓ
Answer(s): 3.45 ℓ
