There are 25 red balls, 47 green balls and 3 blue balls in a basket. There is a blind man. What is the minimum number of balls that the blind man has to pick to make sure that there are at least 2 balls of different colors?
48 balls. There is a small chance he may pick up 47 green balls in a row.
How can you give someone $83 using exactly 7 bills, without using any one dollar bills?
Give them, 1 fifty dollar bill, 1 twenty dollar bill, 1 five dollar bill and 4 two dollar bills.