Question 17
Asha chooses a whole number from 1 to 5 and announces it. Then Richy chooses a whole number from 1 to 5 and announces it. Finally, Asha chooses a whole number from 1 to 5 and announces it.
If the sum of the three numbers announced is a multiple of 7, then Asha wins; otherwise, Richy wins.
What number should Asha choose on her first turn to guarantee that she can win?
If the sum of the three numbers announced is a multiple of 7, then Asha wins; otherwise, Richy wins.
What number should Asha choose on her first turn to guarantee that she can win?