Question

The odometer of the family car shows 15,951 miles. The driver noticed that this number is palindromic: it reads the same backward as forward. “Curious,” the driver said 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 traveling in those 2 hours?

Answer 1

The next palindromic number is 16061, so he traveled 110 miles. 110 miles/2 hours = 55 mph.