Question

Can Anyone Solve this "Third" Question

Answer 1

Answer:

Step-by-step explanation:

vol.of water= 80*60*6.5

area of the cross section of the pipe= 20*20cm²= .2 *.2 m²

distance the water has to flow so that the tank would be emptied                            = volume of the water/area of the cross section                            

=80*60*6.5/(.2*.2) = 78000m=78 km

now, we know that v=d/t

so,t= d/v = 78/15= 5.2 hours