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What is the correct answer?

4

A cube of edge 15 cm is immersed completely in a rectangular vessel containing water. If the dimensions of the base of vessel are 20 cm x 15 cm, find the rise in water level.

A. 10 cm

B. 10.25 cm

C. 11 cm

D. 11.25 cm

Correct Answer :

D. 11.25 cm


Increase in volume = Volume of the cube = (15 x 15 x 15) cm3.


Rise in water level = volume/area = (15 x 15 x 15)/(20 x 15) cm = 11.25 cm.

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