SOLUTION: Elaine is fond of making a wish everytime her car's adometer displays a number read the same forward and backward. At 10:18am the adometer read 87978 km. Traveling continuously the

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Elaine is fond of making a wish everytime her car's adometer displays a number read the same forward and backward. At 10:18am the adometer read 87978 km. Traveling continuously the      Log On


   

Question 628562: Elaine is fond of making a wish everytime her car's adometer displays a number read the same forward and backward. At 10:18am the adometer read 87978 km. Traveling continuously the adomater displayed the next possible number that read the same forward and backward at 11:13am. During this time, what was the car's average speed in kilometers per hour?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
There are no more such numbers before 88000 km
After 88000, the next one is 88088 km
The km traveled is +88088+-+87978+=+110+ km
and
11:13 minus 10:18 is 42 minutes plus 13 minutes
equals 55 minutes
55 minutes is +55%2F60+ hours
+110%2A%2855%2F60%29+=+100.833+ km/hr
Hope I got it