Question 1194737
<br>
4 months is 4/12 = 1/3 of a year, so their average age is 8 1/3 years.<br>
With 6 girls, the sum of their ages is 6(8 1/3) = 50 years.<br>
Given only that information, there are many possible answers for their ages.  We could have<br>
8,8,8,8,9,9
1,1,1,1,1,45
2,5,9,13,21
etc., etc.....<br>
There is not enough information to solve the question as posted.<br>