55 km per hour how many miles is per hour

34.1754 is the answer because if 50 km an hour is 31.0685 just add the other km's

The exact answer is 34.1754

To get an approximate answer, to convert km to miles, you cut the km in half, then cut that into quarter. You will get 27.5 for the half, and 6.875 for the quarter of that. Then you add the two together, which would give you 34.375.