The average weight of 4 person's increases by 3 kg when a new person comes in place of one of them weighing 70 kg. What might be the weight of the new person?
Choose one
A) 75 kg B) 82 kg C) 86 kg D) Data inadequate E) None of these
Total weight increased = (4 x 3) kg = 12 kg.   Weight of new person = (70 + 12)= 
<gadget id="calculator">(70 + 12)</gadget>
<output>82</output>
82 kg.   Answer: Option 82 kg
<result>B</result>
The average weight of 4 person's increases by 3 kg when a new person comes in place of one of them weighing 70 kg. What might be the weight of the new person?