Q9 of 94 Page 231

A cuboid having dimensions 16 m x 11 m x 8 m is melted to form a cylinder of radius 4 m. What is the height of the cylinder?

We know that,

Volume of cuboid = Length × Breadth × Height


= 16 × 11 × 8


= 1408 m3


Also,


Volume of cylinder = r2h = 1408 m3


Therefore,


h =


= 28 m


Hence, option A is correct

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