How many two-digit numbers are multiples of 3 and also factors of 81?

3x=9
so try x=1,2,3,4 and see.

I have been given a riddle that has driven me mad ... but worse, once given the answer. I just became baffled. Can anyone please explain why 487 is the answer to this riddle.

i have 15 cherries, 42 cherries
& a cherry. you have 25 cherries.
Lets swap cherries.
Cherry Christmas.

How many cherries?

I hope you can now see why i'm baffled at this answer.

If this is a puzzle you got from the Great Big British Quiz it's probably baloney, and there's no intelligent reason for that answer.

Based on the information provided, it seems that the answer to the riddle is unrelated to the given numbers or any logical reasoning. Sometimes, riddles can have unexpected or nonsensical answers, and it is possible that the answer to this specific riddle does not have any significant meaning. Therefore, there may not be a valid explanation for why 487 is the answer to this particular riddle.