Question

150 spherical marbles,each diameter 1.4 cm are dropped in a cylindrical vessel of diameter 7 cm containing some water which are completely immersed in water.find that rise in the level of water in the vessel

Answer 1

volume of 150 spheres = volume of cylindrical rise in water

4/3*22/7*1.4/2*1.4/2*1.4/2*150 = 22/7*7*7*height
4*0.7*0.7*0.7*50=3.5*3.5*height
68.6/12.25=height
height = 5.591cm

Answer 2

Hi
We have two radius and we have to find height
so,
Vol. of sphere *150 = Vol. of cylinder
By solving it, the answer is 5.56cm