Tank D has thrice as much water as Tank C. If Vaidev adds 0.4 ℓ of water to Tank D and 2.7 ℓ of water to Tank C, both tanks will have the same volume of water. Find the volume of water in Tank D at first.
| |
C |
D |
| Before |
1 u |
3 u |
| Change |
+ 2.7 |
+ 0.4 |
| After |
1 u + 2.7 |
3 u + 0.4 |
Both tanks have the same volume of water in the end.
3 u + 0.4 = 1 u + 2.7
3 u - 1 u = 2.7 - 0.4
2 u = 2.3
1 u = 2.3 ÷ 2 = 1.15
Volume of water in Tank D at first
= 3 u
= 3 x 1.15
= 3.45 ℓ
Answer(s): 3.45 ℓ
