Eve said to me that she had in mind an even three-figure number that was divisible by 3.
She also told me that she had spelled out the number in words and that she had counted the number of letters used.
Knowing the number of letters would enable me to work out her number, she said.

Oddy said to me that he had in mind an odd three-figure number divisible by 3.
He told me that he, too, had written the number in words and that he had counted the number of letters used. He said that knowing the number of letters would again enable me to work out his number.

Given that their numbers had no digit in common - find their numbers.

Source: Enigma/New Scientist

o   Eve's number was 378

Edited on August 30, 2022, 2:39 am

Posted by K Sengupta on 2022-08-30 02:38:22