 |
|
| |
 | |
|
|
|
| |
|
I have a drawer full of socks. There are 5 socks of each colour, red and green, evenly mixed. In the morning, when it is very dark, I need to pull out a pair of socks of the same colour. How many must I pull out of the drawer to ensure that I have at least one pair of matching socks? [Ref: ZDJR] © Kevin StoneHint: It's not at many as you think.
|
This website uses cookies, for more information please view our privacy policy.