A P-wave takes 3 minutes and 40 seconds to travel from the epicenter of an earthquake to a seismic station. Approximately how long will an S-wave take to travel from the epicenter of the same earthquake to this seismic station?
A. 6 min 40 sec
B. 9 min 40 sec
C. 15 min 00 sec
D. 19 min 00 sec



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