Question 1204311
.


At this forum, there is a nice solution to similar problem, produced years before by our tutors


https://www.algebra.com/algebra/homework/playground/test.faq.question.991197.html



Especially, the solution by the tutor ankor@dixie-net.com has a nice (= a beautiful) idea 


on how to start the solution, so you have everything to follow this pattern.



I myself will not write the solution, since the part of the condition 
"there are 10 family members total" is ambiguous and admits different interpretations

(including mother, father, grandmother, grandfather etc.). I do not like when 
illiterate problems composers turn their problems to soup of words.