Question 764128
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Unless he is going something like 1000 miles per hour, he isn't going to roll the high digit.  So the 1s digit has to be 1 to make a palindrome.  Then he isn't going to get a 5 in the 10s digit unless he goes 100 miles.  But if he goes 100 miles he rolls the 100s digit which has a carry to the 1000s digit.  Now we have 16051 after 100 miles, so go another 10 miles to get 16061, the next palindrome number.  110 miles in 4 hours is 27.5 mph


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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