A solid metallic cone is melted and recast into a solid cylinder of the same base as that of the cone. If the height of the cylinder is 7 cm, the height of the cone was
A20 cm
B21 cm
C28 cm
D24 cm
A20 cm
B21 cm
C28 cm
D24 cm
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A path of uniform width runs round the inside of a rectangular field 38 m long and 32 m wide. If the path occupies 600m2 , then the width of the path is