Question
Mathematics Question on Pipe and Cistern
Two pipes 'A' and 'B' can fill a cistern in 4 minutes and 6 minutes, respectively. If these pipes are turned on alternately for 1 minute each (pipe 'A' is opened first), then how long will it take for the cistern to fill?
A
4 minutes 48 seconds
B
3 minutes 20 seconds
C
4 minutes 50 seconds
D
3 minutes 30 seconds
Answer
4 minutes 48 seconds
Explanation
Solution
The correct option is (A): 4 minutes 48 seconds