Kinda confused on this one becuase of the time difference involved(adsbygoogle = window.adsbygoogle || []).push({});

A train leaves a station going south at 60 km/hr at 10:00. Another train heading due west reaches this station at 11:00. The latter train was travelling at 45km/hr. At what time are they the closest?

To start with the 45 train is 45km away from teh station and in the end the distnace is 60 km

iformulated something like 45(1-t) + 60t = Distance

but that doesnt yield the answer i need...

can someone help!

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# Closest approach of two trains on perpendicular tracks

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