SPEED TIME DISTANCE
TRAIN * 6060 t 6060t
BUS 40 8-t 40(8-t)
Totals 8 352
Using variable t for the question asked, time on the train, just the distance sum should give the necessary equation:
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------, or 19 seconds.
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* Maybe a value in the problem description is wrong? Maybe "60" mph was intended instead of 6060 mph? In that case,
or 1.6 hours , or 1 hour 36 minutes