If 900 people were​ surveyed, how many gave this​ answer?

well not all would do it would be approx 856 people but I dont really know what u mean

i would assume 900, but you did not say what answer they gave, so i'm kinda confused by your question.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m