SOLUTION: Each day, Sam the dog drinks half of the water remaining in his bowl. His owner adds another 200 mL of water to the bowl. There was 500 mL of water in the bowl at the end of Thursd

Question 1011462: Each day, Sam the dog drinks half of the water remaining in his bowl. His owner adds another 200 mL of water to the bowl. There was 500 mL of water in the bowl at the end of Thursday. How much water was in the bowl at the start of Wednesday?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The wording of this question is not clear, so I will use my interpretation. It matters when the water is added. I will assume the water was added at the end of the day.
x=start
x/2 left after drinking.
x/2 +200 after water added.
x/4 +100 after drinking half
200 added
Has x/4+300=500
x/4=200
x=800 ml ANSWER
drank 400 and 200 was added
Thursday starts with 600
drank 300 and added 200. That is 500.
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