The average weight (in kg) of a family of five members whose weights are 40 kg, 49 kg, 56 kg, 76 kg and 36 kg is:

Correct option is C

Given:

Weights of 5 family members = 40 kg, 49 kg, 56 kg, 76 kg, 36 kg

Formula Used:
Average $$=\dfrac{\text{Sum of observations}}{\text{Number of observations}}$$​​

Solution:
Sum = 40 + 49 + 56 + 76 + 36 = 257 kg
Average $$= \dfrac{257}{5} = 51.4$$​ kg