Yesterday I bought two tickets to a movie, which logically had consecutive numbers. I examined the numbers, which had four digits, and mentioned that the sum of the eight digits was 25.
A friend asked if any digit appeared more than twice out of the eight, and I answered him.
Other friend asked if the sum of the digits of either ticket was equal to 13, which I also answered.
And then, to my surprise, my daughter told me what the two numbers were!
What were they?
(In reply to
soln by doubledos)
There is a flaw in your reasoning. If both answers were no, leaving only a single possibility, then he wouldn't (or shouldn't) have been suprised when his daughter came up with the only possible answer.
He must have been suprised because she guessed correctly.
As likely as not, she guessed 0660, 0661 -- because numbers on tickets don't follow the usual rules and quite often begin with leading zeroes. But, would you expect your daughter to know that? Suprise!
re: soln
