A boat having a length 8 m and breadth 2 m is floating on a lake. The boat sinks by 1cm when a man gets on it. The mass of the man is:
Choose the correct choice from the following choices:	A) 12 kg	B) 60 kg	C) 72 kg	D) 160 kg	E) none of these

Rationale: "explanation : volume of water displaced = ( 8 x 2 x 0.01 ) m 3 = 0.16 m 3 . ∴ mass of man = volume of water displaced x density of water = ( 0.16 x 1000 ) kg = 160 kg . answer : d"
Answer: D