Question

A cylindrical tank of base radius 21 contains water. In that water, a metal block
of length 22cm, breadth 18 cm, height 7 CM is dropped then what is increase in
level of water in tank?
(1) 2 CM. ( 4)2.5 cm
(2 ) 3 CM. ( 3). 3.5 cm​

Answer 1

Answer:

2cm

Step-by-step explanation:

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Answer 2

Option (1) is correct.

Step-by-step explanation:

Since we have given that

Radius of cylindrical tank = 21 cm

Dimensions of cuboid = 22 cm, 18 cm , 7 cm

So, Volume of cuboid would be

$Length\times breadth\times height\\\\=22\times 18\times 7\\\\=2772\ cm^3$

Volume of cuboid is given by

$\pi r^2h\\\\=\dfrac{22}{7}\times 21\times 21\times h\\\\=22\times 3\times 21\times h\\\\=1386h$

Since Volume of cuboid = Volume of cylinder

$2772=1386h\\\\h=\dfrac{2772}{1386}\\\\h=2\ cm$

Hence, Option (1) is correct.

# learn more:

59. A cylindrical tank of base radius 21cm contains water. In that water, a metal block

of length 22cm, breadth 18 cm, height 7cm is dropped then what is increase in the

level of water in tank?​

https://brainly.in/question/15394275