cylindrical jar of diameter 7cm contains some water.find the number of marbles of diameter 1.4cm that shoukd be dropped in the jar so that the water level rises by 28 cm .Assume that marbles are completely submerged in water.
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no. of marbles = volume of cylinder\volume of marble
πr^2h\ (4\3πR^3)
3.5 * 3.5 \ 4\3 *0.7*0.7*0.7
750 marbles
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9
no. of marbles = volume of cylinder\volume of marble
πr^2h\ (4\3πr^3)
3.5 * 3.5 \ 4\3 *0.7*0.7*0.7
750 marbles
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