The answer is a.162 because 162.5 rounds down to 162
I think its 180/24 here is my work
so you find the lcm of ![\frac{20}{24} and \frac{9}{24} = 180/24](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B24%7D%20and%20%20%5Cfrac%7B9%7D%7B24%7D%20%3D%20180%2F24)
Answer:
Step-by-step explanation:
12 times or exactly 13.52 times
Once they're empty, I guess.
Did you put it the wrong way around?
Because it would be after four hours in this case.