Question

When some marbles of diameter 1.4 cm each are dropped into a cylindrical vessel of radius 7 cm containing some water in it the water level rises in the vessel to 28 cm find the number of marbles dropped. please answer​

Answer 1

$\fontsize{18}{10}{\textup{\textbf{The number of marbles is 3000}}}$

Step-by-step explanation:

Volume of a cylinder=pi*r^2*h

Volume of the water risen=(22/7) *7*7*28

Let the number of marbles be x

So total volume of marbles

x*(4/3)*pi*r^3  (marbles are spherical)

which is equivalent to the marbles displaced

x*(4/3)*(22/7)(1.4/2)^3=(22/7)*7*7*28

=>x*4*(7/10)^3=3*7*7*28

=>x=3*10*10*10

=>x=3000

Answer 2

Answer:

Number of marbles dropped = 3000

Step-by-step explanation:

Please refer the above attachment.

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