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The Figure Below shows the beams from a beacon with two search lights, one red and one green, which rotate at the same rate. If the red light rotates in a clockwise direction and the gree light rotates in a counterclockwise direction, what is the number of degrees through which each light must rotate before the red beam and green beam are aligned a second time?
a) 180* + w
b) 180* - w/2
c) 360* - w/2
d) (180* + w)/2
e) (360* + w)/2
*From Cambridge Test Prep
BEACOn.JPG [ 8.64 KiB | Viewed 583 times ]