A sphere and a cube have equal surface areas. The ratio of the volume of the sphere to that of the cube is
(I) ãƒÎ : ã6
(2) 2 : ã ƒÎ
(3) 㠃Π: 3
(4) ã 6 : ã ƒÎ
The average height of 3 boys A, B and C is 120 cms and their heights are in the ratio of 8 : 7 : 5 respectively. What is the height of 'B' in cms?
(1) 120
(2) 126
(3) 90
(4) 84,
