Question

It took Grant 6 hours and 15 minutes to go 380 miles from Connecticut to Central Maine. What was his average speed?

63.3 mph
60.8 mph
60.8 km/h
58.46 mph

Answer 1

Total distance travelled=6 hrs 15 minutes

• Convert minutes in hour
• 15 minutes=
  `(1)/(4) hrs`
• Total time=
  `6+(1)/(4) = (25)/(4) hrs`

Total distance=380 miles

`Speed_(avg)=\frac{Total distance} {Total time} \\\\ \to (380 miles)/((25)/(4)hrs) \\\\ \to \frac{380 * 4} {25} \\\\ \to (1520)/(25) \\\\ \to 60.8 mph`

Answer: 60.8mph