Problema Solution
If you drive for 2h at 80 km/h, how fast must you drive during the next hour in order to have an average speed of 75 km/h?
Answer provided by our tutors
For average speed of 75 in three hours you need to cover 75*3 = 225 Km
so you need to cover 225-160 = 65 in one hour
65km/h
I trust this helps