Answer:
39.9
Step-by-step explanation:
Because he cycled 4 days and the distances for each days are 32.3 km, 38.7 km, 43.5 km and 45.1 km. The total distance should be,
[tex]Total = 32.3 km + 38.7km + 43.4km + 45.1km\\\\= 159.6km\\[/tex]
Now the average should be,
[tex]Avg = \frac{159.6 km}{4}\\= 39.9 km[/tex]
This is of course less than 40km and you can told her that she's wrong. And, this is true only when the data of each day is accurate and not rounded so that actual total is relatively more than the one I have calculated.
