if it took 8 men 4 hours to build a wall, how long would it take 3 men to build 2 walls?
what is the longest sequence of consecutive odd primes?
how many people would have to be in a room before the chance that any two people share the same birthday (month + day) exceeds 50%?
these were the two trickiest problems that got me stumped. i had to google to see the answers.
I have two children. One is a boy born on a Tuesday. What is the probability I have two boys? (50% is not the answer btw)
Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice? (it DOES matter if you switch or not btw)
This post was edited by carteblanche on Jun 4 2013 06:55pm