Time Series Analysis and Moving Averages

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Question 1 of 30

The average weight of $A,B,C$ is $45kg$ . If the average weight of $A$ and $B$ be $40kg$ and that of $B$ and $C$ be $43kg$, find the weight of $B$ ?

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$21kg$

$20kg$

$38kg$

$31kg$

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