Answer:
They will pass in 30.97 seconds (16/31 minutes).
Step-by-step explanation:
blah blah this the answer nothing more nothing less
Let time be x , distance be y
Put value in eq(2)
[tex]\\ \rm\longmapsto 230x=210-(160y)[/tex]
[tex]\\ \rm\longmapsto 70x=210[/tex]
[tex]\\ \rm\longmapsto x=30min[/tex]