Question
City Q and City R is 780 km apart. At 09 15, Dana, travelling at a constant speed, left City Q for City R. At the same time, Gabriel set off from City R for City Q at a constant speed which was 10 km/h faster than Dana. Find Gabriel's speed if they met at 15 15.
3 m

Click button first when a symbol is required. X

City Q and City R is 780 km apart. At 09 15, Dana, travelling at a constant speed, left City Q for City R. At the same time, Gabriel set off from City R for City Q at a constant speed which was 10 km/h faster than Dana. Find Gabriel's speed if they met at 15 15.