Question 1012856
.
x=time until they pass
.
(160m/min)x+(150m/min)x=160m
(310m/min)x=160m
x=160m/(310m/min)
x=16/31 min
.
(16/31 min)((60sec)/min)=30.97 seconds
.
ANSWER: They will pass in 30.97 seconds (16/31 minutes).
.