7
$\begingroup$

My sister has six children whose ages add up to 40. The ages of any two of her three boys have a common divisor greater than 1, and so do the ages of any two of the ages of her three girls. However, only one of the boy's ages has a common divisor with the age of one of the girls.

How old are my sister's six children?

$\endgroup$
8
$\begingroup$

They are

$3$, $3$, $6$, $7$, $7$, and $14$.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.