4150 6749 8163 3571 8466 9788
Can you replace the question mark with the correct number ?
Can you Solve it? Explain how!
At a party, everyone shook hands with everybody else. There were 66 handshakes. How many people were at the party?
In a drawer you have black socks and white socks. They are not stored away in pairs. Without looking, how many times will you have to reach into the drawer to come out with a matching pair?
Given these equations, what does 4500 equal?