Convert the meter distance to KM so thaey are all the same measurement:
1 meter = 0.001 km
400 m x 0.001 m/km = 0.4 km
Now add all three distances:
Total distance = 0.4 + 40.1 + 12.2 = 52.7 km.
The answer is B.
From information given, we know
208 miles was at rate of 65 mph. so divide total mileage by speed to get time spent.
208 ÷ 65 = 3.2 hours
So the rest of the trip took 6 - 3.2 = 2.8hours to travel another 348 total miles minus the 208 miles driven at 65mph is 140 miles.
140 miles divided by 2.8 hours gives speed
140 ÷ 2.8 = 50 miles per hour