Question

The average weight of 6 boys is 36kg find the weight of the 6th boy if the weights of five boys are 33kg,32kg,35kg,39kg, and 40 kg​

Answer 1

Answer:

Let the weight of the 6th boy be x

$Average = \frac{ \: sum \: of \: all \: observations}{no. \: of \: obs} \\ 36 = \frac{33 + 32 + 35 + 39 + 40 + x \: }{6} \\ 216 = 179 + x \\ x = 216 - 179 \\ x = 37$

Therefore the weight of the 6th boy is 37kg