The average weight of 2 person's increases by 4.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?  Choose the correct choice from the following answers:
A) 74 kg
B) 76.5 kg
C) 85 kg
D) 78
E) None of these
Explanation:   Total weight increased = (2 x 4.5) kg = 9 kg.   Weight of new person = (65 + 9)= 
<gadget id="calculator">(65 + 9)</gadget>
<output>74</output>
74 kg.   74 kgnswer: 74 kg
<result>A</result>
The average weight of 2 person's increases by 4.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?