Mathematics
Medium
Question
A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in?
A
16 hrs
B
20 hrs
C
40 hrs
✓ Official correct answer
D
25 hrs
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
16 hrs
No member explanations yet for this option.
B
20 hrs
No member explanations yet for this option.
C
40 hrs
No member explanations yet for this option.
D
25 hrs
No member explanations yet for this option.