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Originally Posted by Ninja

6 times 6 = 36?

If you know you'll get the first four numbers right, there are two unpredicted balls left, and each one could be a 1,2,3,4,5 or 6. That means 6 times 6 possibilities.

And if there is a zero involved, it is 0,1,2,3,4,5,6 = 7 possibilities = 7 times 7 (two balls) = 49 possible outcomes.

Ohh, okay. I was thinking that the numbers went up to 9.