The capacity of a cylindrical tank is 496.4 litres. If the height of the tank is 4 metres, then what will be the diameter of the base?
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Correct answer is 0.28m
Volume of the tank=246.4litres=246400cm3
Let the radius of the base be r cm
Then 722×r2×400=246400
⇒r2=22×400246400×7=196
⇒r=14 cm
Diameter of the base=2r=2×14=28 cm=0.28 m
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