Mathematics
NULL
Medium
Question
One tap fills a tank in 6 hours. After the tank is half full, three more identical taps are opened. Total time to fill completely?
A
3 hrs 15 min
B
3 hrs 45 min
✓ Official correct answer
C
4 hrs
D
4 hrs 15 min
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
3 hrs 15 min
No member explanations yet for this option.
B
3 hrs 45 min
No member explanations yet for this option.
C
4 hrs
No member explanations yet for this option.
D
4 hrs 15 min
No member explanations yet for this option.
Explanation
First half: 3 hours. Remaining half with 4 taps takes 45 minutes. Total = 3 hrs 45 min.