Ex 9.3, 6 A milk tank is in the form of cylinder whose radius is 1.5 m and length is 7 m. Find the quantity of milk in liters that can be stored in the tank?
Given,
Radius of tank = r = 1.5 m
& Height of tank = h = 7 m
Now,
Quantity of milk stored in the tank
= Volume of tank
= Volume of cylinder
= ππ^2 β
= 22/7Γ(1.5)^2Γ7
= 22/7Γ(1.5)^2Γ7
= 22Γ(1.5)^2
= 22Γ1.5Γ1.5
= 22Γ15/10Γ15/10
= 22Γ225/100
= 4950/100
= 49.5 π^3
Since we need to find the quantity in litres,
β΄ Converting 49.5 π^3 into litres
Since
1 m3 = 1000 liters
49.5 m3 = 49.5 Γ 1000 liters
= 49500 liters
β΄ 49500 Litres of milk can be stored in the tank.

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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