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Question 1:
A rectangular block has the dimensions 5x6x7 cm it is dropped into a cylindrical vessel of radius 6cm and height 10 cm. If the level of the fluid in the cylinder rises by 4 cm,
What portion of the block is immersed in the fluid ?
A. 22/7 x 24/35
Feedback Since level of water increased in cylinder by height 4.
This is because of the rectangular block .
Therefore , area of rectangular block immersed in water is
= 22/7×6×6×4
Thats why portion of block immersed in water is
= (22/7 * 36 * 4) / total vol. of rectangle
= (22/7 * 36 * 4)/ (7*5*6)

= (22/7 * 24)/ 35.
B. 22/7 x 36/4
C. 22/7 x 36/5
D. 22/7 x 37/21

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