Question:
A cistern can be filled in 10 hours but it takes 12 hours due to a leak in its bottom. If the cistern is full, then the time that the leak will take to empty it is:
80 h | |
60 h | |
60 min | |
90 h | |
60 h |
Answer:
60 h
Last Updated:
08/11/2021 - 03:29