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?
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We have, Volume of the milk tank =$$\pi r^2h$$
$$=\frac { 22 }{ 7 }\times 1.5 \times 1.5 \times 7$$
$$= 22 \times 2.25= 49.50 m^3$$
∴ Volume of milk in litres = $$49.50 \times 1000 L\quad$$ [∵ 1 $$m^3$$ = 1000 litres]
$$= 49500 L$$