Question 884173: a car milometere shows 15951.After 2 hours it shows another palindromic number.how fast was the car going on the average Answer by richard1234(7193) (Show Source):
You can put this solution on YOUR website! Assuming units are in miles, 16061 is the best choice for the next palindrome, in which the average speed is (16061-15951)/2 = 55 mph.
The next palindrome is 16161, if that is the case then the average speed would be 105 mph.