Question

11. Marbles of diameter 14 cm are dropped into a
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. (HOTS)

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Answer 1

Answer:

step - by - step explanation

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 = 56 cm

volume change = volume of n marbles

So 1500 marbles should be dropped

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