Question

So 24L of water outflow through out
4 min.
Time required to outflow 24L water = 4 min
4.
1
Time required to outflow 80L water *80 = 13 - min.
3
24
Variety-6
Ex.1.18 Pipe A can fill a cistern in 20 minutes, pipe B can fill
same cistern in 16 minutes. Both pipes are opened together, after
3 minutes due to blockage in the pipe, pipe A flow 3/4 of its effi-
ciency and pipe B flow 4/5 of its efficiency. After sometimes
blockage cleared and tank became full in 10 minutes. Find how
much time before, filling of the cistern, blockage cleared?
​

Answer 1

Answer:

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