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 man is  Answers:
A) 12 kg	B) 60 kg	C) 72 kg	D) 96 kg	E) none

Rationale: "solution volume of water displaced = ( 3 x 2 x 0.01 ) m 3 = 0.06 m 3 . mass of man = volume of water displaced × density of water = ( 0.06 × 1000 ) kg = 60 kg . answer b"
Answer: B