among the sons.
One father forms the parent of the children.
The total becomes nine plus one plus one. The sum equals eleven people.
The solution emerges through close attention to the given words.
Many individuals reach an incorrect total because of the way the sentence is constructed. The phrase “each son has a sister” leads the mind toward an
image of multiple distinct sisters. The assumption of uniqueness appears automatically.
This riddle illustrates the value of careful attention to language. The exercise functions as a measure of reading comprehension.
