Engineering News
March 29, 2004, Vol. 10, No. 8S

Brainteaser Answer

In the land of Woz, each person has only one car. The license plate of each car is different and contains just one letter and one one-digit number including zero. How many people live in the land of Woz?

Answer: Take the number of possible digits for the first slot, times the number of possible digits for the second slot, times 2 (because the two could be swapped.) You get 26*10*2 = 520 possible plates. The above answer assumes that you cannot use lower case letters.

The winner is ME sophomore Henry Lopez.


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