The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
Answers:
A) 76
B) 76.5
C) 85
D) 80
E) none of these
Explanation:   Total weight increased = (8 x 2.5) kg = 20 kg.   Weight of new person = (65 + 20)= 
<gadget id="calculator">(65 + 20)</gadget>
<output>85</output>
85 kg.   ANSWER:85
<result>C</result>
The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?