Fun With Modular Arithmetic

any body workout this problem and send me the reply
%8(remainder 8 without using any arithmetic operations like add,sub,div,multi)

send me the solution as early as possible

  1. choosing at random.
    As a child we sang “ip dip sky blue, whose it not you” repeatedly and other songs.
    This rejected the 8th mod n person when there were n of us.

  2. In angles we have mod 360º
    Can I then go on to say that in radians (I’m teaching complex numbers now) we are counting mod 2 pi ???

_. and continue mod 2

You might be amused by this use of modular arithmetic on a UK TV quiz show.
BBC 2 ‘University Challenge’ episode 28. Feb 9th 20015. 14 minutes in. Available on BBC iPlayer.
"What day of the week will it be 100 days after Monday?"
The quiz master is astonished by the lighteningly quick answer.
Well done Hugh Binnie.

Can you site example base on real life situation using modular arithmetic?