a flooded by area is pumped dry in 45 minutes using three idential pumps if one of the pumps failed to work how long would it takrs to pump the area city
If three identical pumps can pump the flooded area dry in 45 minutes, then the rate at which each pump works is 1/45th of the area per minute.
If one pump fails to work, then the rate at which the remaining two pumps work would be 2/45th of the area per minute.
Therefore, to pump the entire area dry with only two pumps, it would take (1 / (2/45)) minutes.
Simplifying the expression, we get:
1 / (2/45) = 45/2
Therefore, it would take 45/2 minutes, or 22.5 minutes, to pump the area dry with two pumps.