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 is the weight of the new person?
Options:
A . 75 Kg
B . 50 Kg
C . 85 Kg
D . 80 Kg
Answer: Option C
Answer : Option C
Explanation :
$MF#%\text{Total increase in weight = }8 \times 2.5 = 20$MF#% If x is the weight of the new person, total increase in weight = x - 65 => 20 = x - 65 => x = 20 + 65 = 85
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