alleryStart learning →Eight people average 60 kg. A ninth person weighing 69 kg joins. What is the new mean weight?
A62 kg
B60.5 kg
C61 kg
D61.5 kg
Answer & Solution
Correct answer: C. 61 kg
The total becomes 480 + 69 = 549, and 549/9 = 61 kg.
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