Question
City E and City F is 572 km apart. At 09 45, Dana, travelling at a constant speed, left City E for City F. At the same time, Warren set off from City F for City E at a constant speed which was 15 km/h faster than Dana. Find Warren's speed if they met at 13 45.
3 m

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City E and City F is 572 km apart. At 09 45, Dana, travelling at a constant speed, left City E for City F. At the same time, Warren set off from City F for City E at a constant speed which was 15 km/h faster than Dana. Find Warren's speed if they met at 13 45.