Solution Step 0/0
In a family, each sibling has at least one brother and one sister.
What is the smallest possible number of children in such a family?
What is the smallest possible number of children in such a family?
Explanations
4 siblings is the minimum number.There must be at least two boys in the family in order a male sibling has at least any other brother. And there must be at least two girls in the family in order a female sibling has at least any other sister. Two boys and two girls - 4 in total.
Check 3
Check 4
Check 5
Check 7
