SOLUTION: The odometer of the family car shows 15,951 miles. The driver noticed that this number is palindromic; it reads the same forwards and backwards. "Curious," said the driver to him

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Question 958607: The odometer of the family car shows 15,951 miles. The driver noticed that this number is palindromic; it reads the same forwards and backwards.
"Curious," said the driver to himself. "It will be a long time before that happens again!"
But 2 hours later, the odometer showed a new palindromic number.
How fast was the car driving in those two hours?

Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
Look at the three inner digits. How could you increment the 9 and the 5, so that the left five and the right five both go to the same newer digit? Add 100 to 15951 will not let position two and four match. What about add 110?

15951+110=16061

55 miles per hour