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RIDDLES

A Fast Food Restaurant Sells Chicken in Orders of 6, 9, and 20. What is the Largest Number of Pieces of Chicken you Cannot Order from this Restaurant?

by Fabrizio Nava

Published September 22, 2017

This one will require you to do a little math, but it is one of our most popular riddles, can you figure out the answer? Good luck!

Riddle:

Related:

  1. The Best Breakfast At Every Fast-Food Restaurant
  2. New Study Shows Which Fast Food Restaurant Has Fastest And Slowest Drive-Thrus

It’s not as simple as you thought, right?

And the answer is…

After 6 all numbers divisible by 3 can be ordered (because they can all be expressed as a sum of 6’s and 9’s). After 26, all numbers divisible by three when subtracted by 20 can be obtained. After 46, all numbers divisible by three when subtracted by 40 can be obtained. After 46, all numbers fit into one of these 3 categories, so all numbers can be obtained. 43 is the last number that doesn’t fall into one of these categories (44 = 20 + 6 * 4, 45 = 6 * 6 + 9).

Did you figure this one out? We love riddles and this one kept us guessing. If you have any riddles you think are fun and challenging please let us know below in the comments section. Our best riddles come from fans like you, thanks for playing!

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