Question

Water is flowing at the rate of 15 km per hour through a pipe of daimeter 14cm into a rectangular tank which is 50m long and 44m wide . Find the time in which the level of water in tnk will rise by 21 cm

Answer 1

Answer:

Step-by-step explanation:

In cylinder,

r=7cm=0.7m

l=15km

 =15000m

In tank,

l=50m

b=44m

h=0.21m

Vol.of water in tank=lbh

                              =50*44*0.21

                              =462m³

Height of cylindrical pipe=Vol. / πr²

                                     =462/(0.07)²(22/7)

                                     =462/0.0154

                                     =30000m

Time = 30000/15000

        = 2 hours