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	Choose the correct choice from the following choices.
A) 12 kg
B) 60 kg
C) 72 kg
D) 96 kg
E) None
Solution   Volume of water displaced	= (3 x 2 x 0.01)m3   = 0.06m3.   Mass of man	=Volume of water displaced ×Density of water   = (0.06×1000) kg   = 60 kg.   Answer 60 kg
<result>B</result>
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