To find out how much water Khloe drinks in glasses per hour, we need to calculate the number of glasses of water she consumes in one hour.
First, let's calculate how much water Khloe drinks in one minute. We know that Khloe drinks 4/5 of a 10-ounce glass of water in 2/3 of an hour.
To convert the time to minutes, we need to multiply 2/3 by 60 (since there are 60 minutes in an hour):
2/3 * 60 = 40 minutes
Next, we calculate the amount of water Khloe drinks in one minute:
4/5 of a 10-ounce glass = (4/5) * 10 = 8 ounces
Now, let's calculate how many minutes are there in an hour:
60 minutes
Finally, we can calculate the number of glasses of water Khloe drinks in one hour:
8 ounces * (60 minutes / 40 minutes) = 12 ounces
Since there are 12 ounces in a glass, Khloe drinks 12/10 = 1.2 glasses of water per hour.
Therefore, Khloe drinks approximately 1.2 glasses of water per hour.