Question

8. Manish drove from Chicago to Baton Rouge. At 8:00 a.m., he was 510 km from Baton Rouge. At 1:00 p.m., he was 105 km from Baton Rouge. Which of the following values is closest to Manish's average speed, in kilometers per hour, from 8:00 a.m. to 1:00 p.m. ? ​

Answer 1

The average speed travelled by Manish is 81 km / hr

To determine the average speed travelled, divide total distance travelled by total time travelled

Average speed = total distance / total time

total distance = 510km - 105km = 405 km

Total time travelled = 1 pm - 8am

13 : 00 - 8 : 00 = 5 : 00 hours

Average speed = 405 km / 5 hours = 81 km / hr

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