The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 70 kg. What is the weight of the new person?  Pick one:
A) 90	B) 65	C) 85	D) 95	E) 80
Total increase in weight = 8 × 2.5 = 20   If x is the weight of the new person, total increase in weight = x−70   =&gt; 20 = x - 70   =&gt; x = 20 + 70= 
<gadget id="calculator">20 + 70</gadget>
<output>90</output>
90   90nswer is 90.
<result>A</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 70 kg. What is the weight of the new person?