Mathematics
Medium
Question
If two pipes function together, the cistern will be filled in 6 hrs. One pipe fills the cistern 5 hrs. faster than the other. How many hours it take the second pipe to fill the cistern?
A
5 hrs
B
10 hrs
C
15 hrs
✓ Official correct answer
D
20 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
5 hrs
No member explanations yet for this option.
B
10 hrs
No member explanations yet for this option.
C
15 hrs
No member explanations yet for this option.
D
20 hrs
No member explanations yet for this option.