Illuminations: Brain Teasers - 1 views
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John Evans on 12 Jul 16" The Puzzled Driver 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?"
