When Grandma was asked about her age she told her grandchildren the following:
-"If the age of the oldest of you will be added to the product of ages of the younger two,- you would get my current age."
The three boys, Alex, Bob and Cid, started their thinking, but only Bob, the middle child provided the correct answer and added:
"If we had to perform the above operations a year ago - we would be off by 14 years...
What were the boys' Grandma's ages, given Alex's age was a prime number?

(In reply to I must be missing something by Charlie)

...I must be missing something... No, you did not.

It was my fault, resulting from not trying to solve my own puzzle.

As you see, I have posted a corrected version, hoping it is TOTALLY OK.

Re your lists:

1.The 2nd list is meaningless. Bob made his remark after evaluating Gra's age.

2,. 1st list:  the same triplets appear numerous times.

Actually , the generic  triplet is x,15-x, N,  within the  limitations of the text.

Thank you a lot for your remarks.

and biology

Posted by Ady TZIDON on 2014-08-21 01:35:28