A boat having a length 9 m and breadth 3 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:	Answers.
A) 100 kg B) 120 kg C) 189 kg D) 180 kg E) 270 kg

Rationale: "volume of water displaced = ( 9 x 3 x 0.01 ) m 3 = 0.27 m 3 . mass of man = volume of water displaced x density of water = ( 0.27 x 1000 ) kg = 270 kg . answer : e"
Answer: E