The average weight of 8 persons 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? Choices:  A) 76 kg  B) 80 kg  C) 85 kg  D) 90 kg  E) None
Solution   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 kg
<result>C</result>
The average weight of 8 persons 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?