Question

Meera is dropping marbles of diameter 1.4cm In to a cylindrical vesselof radius 7cm containing some water. How many marbles must be dropped by her so that water in the vessel rise by 28cm​

Answer 1

• Answer = 3000
• r of sphere = 1.4/2=0.7=7/10cm
• r1 of raised cylinder = 7cm
• h=28cm
• Let n be the number of marbles
• Volume of rised to water(cylinder) = n ( volume of marble ( sphere))