Four years ago, the average of a 4 member family was 40 years. 3 years ago, a boy got married to a 23 years old girl, and they had a baby boy last year. what is the average of the family 2 years from now assuming no one joins or leaves from the family in the next 2 years.
a) 40
b) 42.5
c) 36.5
d) 34
e) 35.8
a) 40
b) 42.5
c) 36.5
d) 34
e) 35.8