Question

Capacity of a cylindrical tank is 6160 cu. cm. If the diameter of its base is 28 cm. Find the depth
of the tank.
its urgent pls help​

Answer 1

Answer:

Let the depth of the tank be h.

Given:-

Volume of tank =6160m

3

Radius of tank =14m

As we know that, volume of tank is given as-

V=πr

2

h

Therefore,

Volume of tank =πr

2

h

⇒

7

22

×(14)

2

h=6160

⇒616h=6160

⇒h=

616

6160

=10m

Hence the depth of the tank is 10m

Now again as we know that the curved surface area of cylinder is given as-

A=2πrh

Therefore,

curved surface area of tank =2×

7

22

×14×10=880m

2

Given that the cost of painting is Rs.3 per m

2

.

Therefore,

Cost of painting the curved outer surface of tank =3×880=Rs.2640

Hence the cost of painting the curved outer surface is Rs.2640.