Every week we feature a Brain Teaser or a thought-provoking question.
If you have one that you would like to share with fellow engineers, please email it to firstname.lastname@example.org.
So, here is this week’s,
Mr. and Mrs. Ford have three daughters.
When the youngest was born, you could multiply the middle child’s age by
three to get the oldest sister’s age.
Nine years ago, you could add the middle child’s age to the youngest
child’s age to get the oldest child’s age.
What is the youngest that the oldest child can be now?
The correct answer will be posted a week following this posting.