A boat having a length 8 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: Pick one.
A) 100 kg
B) 120 kg
C) 89 Kg
D) 80 Kg
E) 240 Kg
Volume of water displaced	= (8 x 3 x 0.01) m3   = 0.24 m3.   Mass of man = Volume of water displaced x Density of water   = (0.24 x 1000) kg   = 240 kg.   Answer: 240 Kg
<result>E</result>
A boat having a length 8 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: