Question

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) 11.25cm B) 11.56cm C) 11.66cm D) 10.86cm

Answer 1

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The answer is A

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Answer 2

Answer:

given : cube of 15 cm edge

dimension of base vessel 20 cm × 15 cm

to find rise in water level h = ?

Volume of cube = 15³

Volume of cube V = base area of vessel × h

15³ = 20×15×h

=> h = 15³/20×15

=> h = 15²/20

=> h = 225/20

=> h = 45/4

=> h = 11.25 cm

therefore rise in water level is 11.25 cm