The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 45kg. What is the weight of the new person?
Choose the correct answer: A) 75 Kg B) 65 Kg C) 85 Kg D) 80 Kg E) 60 KG
Explanation:   Total increase in weight = 8 Ã— 2.5 = 20   If x is the weight of the new person, total increase in weight = xâˆ’45   =&gt; 20 = x - 45   =&gt; x = 20 + 45= 
<gadget id="calculator">20 + 45</gadget>
<output>65</output>
65   Answer: Option 65 Kg
<result>B</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 45kg. What is the weight of the new person?