Question 253445
A taxi left Los Angeles at 7:50 am travelling  50 kph. At 9 am, an express train travelling 110 kph left the same spot travelled by the taxi. At what time did the train overtake the taxi
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Do these the easy way:
In 70 minutes (900 - 750) the taxi went 50*(70/60) km = 175/3 km
The train gains on the taxi at 60 kph (110-50), or 1 km/minute
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(175/3)/1 = 175/3 minutes = 58 mins 20 seconds
--> 09:58:20 AM