Answer:
t = 100secs
Step-by-step explanation:
The following data
Distance x = 17km = 17000m
Speed v = 340m/s
Using the formula to get the time;
2x = vt
t = 2x/v
t = 2(17000)/340
t = 34000/340
t = 100secs
Hence it takes 100seconds for the sound to reach your ears