Mathematics
Medium
Question
To fill a cistern, pipes P, Q & R take 20, 15 & 12 minutes respectively. The time in minutes that the three pipes together will take to fill the cistern is:__________?
A
5 min
✓ Official correct answer
B
10 min
C
15 min
D
20 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
5 min
No member explanations yet for this option.
B
10 min
No member explanations yet for this option.
C
15 min
No member explanations yet for this option.
D
20 min
No member explanations yet for this option.