a cistern has two supply pipe a b and waste pipe c through a and b the cistern can filled in 15minutes and 18minutes respectively through v the fill cistern can be empty in 20 minutes at first the pipes a and c are opened for 5 minute then the pipe a is closed and the pipe b is opened how much more time is needed to fill the cistern
ans is 2hrs 45min please step by step explanation
Answers
Answered by
0
Answer:
I don't know the answer but you know it's and what there names
Answered by
0
Answer:
this question is not full
Similar questions