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Q.
A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:
A.
12
B.
60
C.
72
D.
90
View Answer
Correct choice: B
Explanation:
Volume of water displaced = (3 x 2 x 0.01) = 0.06 cu.m. Mass of man = Volume of water displaced x Density of water = (0.06 x 1000) kg = 60 kg.
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