Question

water is flowing at the rate of 15 km pee hour through a pipe of r 7cm into a tank . find the volume of tank after 30 min​

Answer 1

Answer:

diameter =14 cm

⇒=

2

14

=7cm=

100

7

m

Volume of pipe = volume of cylinder =πr

2

h

⇒πr

2

h=π(

100

7

)

2

h=

7

22

×

100

7

×

100

7

×h=

100×100

22×7h3

(ii) Tank is in the form of caloid where l=500m

b=44m,h=21cm=

100

21

m=0.21m

Volume of the tank =lbh=50×44×

100

21

=22×21m

2

We have volume of pipe = volume of tank

⇒

100×100

22×7h

=22×21

⇒h=3×10000m=

1000

30,000

km=30km

Water in pipe flows at the rate of 15km/hr

30km travels in pipe in

15

30

hrs=2hrs

So, in 2hrs, the tank will be filed.