Pick-Up Sticks

Logic Level 3

Alice and Bob are playing a game in which they take turns removing 1, 2 or 3 sticks from a pile of sticks. The game is won by the person who removes the last stick(s). If the number of sticks in the pile is denoted by a natural number n, what number must n be a multiple of for Bob to beat Alice without fail if Alice goes first?

×

Problem Loading...

Note Loading...

Set Loading...