A cyclist covers his first three miles at an average speed of `8` m.p.h. Another two miles at 3 m.p.hand the last two miles at 2 m.p.h. The average speed for the entire journey is: (in m.p.h)1)

A cyclist covers his first three miles at an average speed of 8 m.p.h. Anoter two miles at 3m.p.h. and the last two miles at 2m.p.h. The average speed for the entire journey is : (in m.p.h)

A cyclist covers his first 20 km at an average speed of 40 kmph, another 10 km at an average speed of 10 kmph and the last 30 km at an average speed of 40 kmph. Then the average speed of the entire journey is

A bus covers the first 10km of its journey at an average speed of 40 km/h and the remaining 45 km at an speed of 60 km/h. The average speed of the bus for its total journey is

A bus covers the first 10 km of its journey at an average speed of 40 km/h and the remaining 45 km at an speed of 60 km/h. The average speed of the bus for its total journey is

A train goes from P to Q with an average speed of u km/h and returns from Q to P with an average speed of v km/h. What is its average speed for the entire journey in km/h?

A travels 15 km with a speed of 30 km/h. He another 25 km with a speed of 10 km/h. What is his average speed for the entire journey?

Joe drives 120 miles at 60 miles/h and then drives the next 120 miles at 40 miles/h.What is his average speed for the entire trip?