Three pipes A, B and C can fill a tank in 12, 15 and 20 hours respectively. Find the time taken to fill the tank, if pipe C is kept open all the time and pipes A and B are opened for one hour each alternatively starting with A.
8 hours
2 hours
4 hours
6 hours
Answers
Answered by
0
Answer:
2 hours is right answer . i think so
Similar questions
Science,
5 months ago
English,
10 months ago
English,
10 months ago
Social Sciences,
1 year ago
Social Sciences,
1 year ago