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**https://scontent-vie1-1.xx.fbcdn.net/v/t34.0-12/14955857_1113106435476531_5016282393940245289_n.jpg?oh=c2e50935ccd57a0863d5f00c5b56653a&oe=5821DD35**

Shot point A and B are located at a 225m spread of 16 geophones. Using the data in the attachment, Find

1. The Velocities, V1and V2

2. The Dip()

3. The depth of the refractor, h

**My understanding of the Problem**

v=(x2-x1)/(t2-t1),,where V is d velocity and x1, x2 are distances of any two recording stations from the shot point(source),, t1 and t2 are the times of arrival of the seismic wave at d same stations.

i have tried ploting tA against Xa, and tB against Xb all on the same graph. but dont just know what to do nest.please help me out