A body covers half the distance with a speeed of 20 `m//s` and the other half with a sopeed of 30 `m//s`. What is the average speed of the whole journey ?

A body covers half the distance with a speed of 20m/s the other half with a speed of 30m/s. The average velocity ogf the body during the whole journey is

A car covers half the distance at a speed of 60kmh^(-1) and the other half at a speed of 40kmh^(-1) . The average speed of the car is

A vehicle travels half the distance L with speed v_1 and the other half with speed v_2 , What is the average speed?

A man was travelling half of the total distance at a speed of 30 km/h and the rest distance at the speed of 50 km/h. What was the average speed of the man on his whole journey ?

A car covers a certain distance in 8 hrs. It covers half distance at the speed of 40 km/hr and the other half at the speed of 60 km/hr. Find the distance of the journey.

A car moves a distance of 100 m. It coveres first half with speed of 10 m/s and another half with speed of v m/s. If the average speed of car is 18 m/s, then value of v is