A jar contained 3.7 ℓ more water than a pot. After some water was poured from the jar to the pot, both the jar and the pot had 5 ℓ of water each. How much water was there in the pot at first?
|
Jar |
Pot |
Total |
Before |
1 u + 3.7 |
1 u |
10 |
Change |
- ? |
+ ? |
|
After |
5 |
5 |
10 |
Volume of water in the pot = 1 u
Volume of water in the jar = 1 u + 3.7
Total volume of water
= 1 u + 1 u + 3.7
= 2 u + 3.7
Total volume of water
= 2 x 5
= 10 ℓ
When water is poured from the jar to the pot, the total volume remains unchanged.
2 u + 3.7 = 10
2 u = 10 - 3.7
2 u = 6.3
1 u = 6.3 ÷ 2 = 3.15
Volume of water in the pot at first = 3.15 ℓ
Answer(s): 3.15 ℓ