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If a 3-digit integer is selected at random from the [#permalink]

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11 Nov 2007, 14:29

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If a 3-digit integer is selected at random from the
integers 100 through 199, inclusive, what is the
probability that the first digit and the last digit of the
integer are each equal to one more than the middle
digit?

I've got 10 possible numbers 100 1+0 is 1 greater than 0 111 1+1 is 1 greater than 1 122 1+2 is 1 greater than 2 133 ....etc 144 155 166 177 188 199

That gives 10/100. What am I missing???

Here we go...

If a 3-digit integer is selected at random from the
integers 100 through 199, inclusive, what is the
probability that the first digit and the last digit of the integer are each equal to one more than the middle digit?

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Written by Scottish historian Niall Ferguson , the book is subtitled “A Financial History of the World”. There is also a long documentary of the same name that the...

Post-MBA I became very intrigued by how senior leaders navigated their career progression. It was also at this time that I realized I learned nothing about this during my...