a boat having a length 3 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) 89 kg
D) 90 kg
E) 110 kg
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">9 * (1/100)</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">(9/100) * 1_000</gadget>
<output>90</output>

<result>D</result>
a boat having a length 3 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:
multiply(multiply(multiply(3, 3), divide(1, const_100)), const_1000)
"volume of water displaced = ( 3 x 3 x 0.01 ) m 3 = 0.09 m 3 . mass of man = volume of water displaced x density of water = ( 0.09 x 1000 ) kg = 90 kg . answer : d"