The body weight of seven students of a class is recorded as 54 kg, 78 kg, 43 kg, 82 kg, 67 kg, 42 kg and 75 kg. What is the average body weight of call the seven students?

A. 63 kg

B. 69 kg

C. 741 kg

D. 73 kg

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Solution(By Apex Team)

$\begin{array}{l}\text{ Average body weight }\\ =\Large\frac{54+78+43+82+67+42+75}{7}\small\mathrm{~kg}\\ =\Large\frac{441}{7}\small\mathrm{~kg}\\ =63\mathrm{~kg}\end{array}$