<PRE><B>Question 1134751</B>
rate * time = distance
:
let t be the time for P waves to travel the distance, then t+40 is the time for S waves
:
5 * t = 3 * (t + 40)
:
5t = 3t +120
:
2t = 120
:
t = 60 seconds
:
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The station is 5 * 60 = 300 km from the epicenter
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:
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