Spherical marbles of diameter 1.4 cm are dropped into beaker containing some water and are fully submerged. The diameter of the beaker is 7 cm. Find how many marbles have been dropped in it if the water rises by 5.6 cm ?

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Solution

Diameter of marble = 1.4 cm
radius = 1.4/2 = 0.7 cm
volume of 1 marble =
let number of marbles required = n

base diameter of beaker = 7cm
radius = 7/2 = 3.5 cm
height rise in water = 5.6 cm

volume change = volume of n marbles

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Spherical marbles of diameter 1.4 cm are dropped into beaker containing some water and are fully submerged. The diameter of the beaker is 7 cm. Find how many marbles have been dropped in it if the water rises by 5.6 cm ?

Diameter of marble = 1.4 cm radius = 1.4/2 = 0.7 cm volume of 1 marble = let number of marbles required = n base diameter of beaker = 7cm radius = 7/2 = 3.5 cm height rise in water = 5.6 cm volume change = volume of n marbles

Diameter of marble = 1.4 cm
radius = 1.4/2 = 0.7 cm
volume of 1 marble =
let number of marbles required = n

base diameter of beaker = 7cm
radius = 7/2 = 3.5 cm
height rise in water = 5.6 cm

volume change = volume of n marbles