A car travels the first third of a distance with a speed of 10 kmph, the second third at 20 kmph and the last third at 60 kmph. What is its mean speed over the entire distance?

A car travelled the first third of a distance (x) at a speed of 10 km//h , the second third at a speed of 20 km//h and the last third at a speed of 60 km//h . Determine the average speed of the car over the entire distance (x).

A bus travelled the first one-third distance at a speed of 10 km//h , the next one-third at 20 km//h and the last one-third at 60 km//h . The average speed of the bus is

A bus travelled the first one-third distance at a speed of 10 km//h , the next one-third at 20 km//h and the last one-third at 60 km//h . The average speed of the bus is

A motor vehicle travelled the first third of a distance s at a speed of v_1 =10 kmph, the second third at a speed of v_2 =20 kmph and the last third at a speed of v_3 =60 kmph. Determine the mean speed of the vehicle over the entire distance s.

A motor vehicle travelled the first third of a distance s at a speed of v_1 =10 kmph, the second third at a speed of v_2 =20 kmph and the last third at a speed of v_3 =60 kmph. Determine the mean speed of the vehicle over the entire distance s.

A bus travelling the first one third distance at a speed of 10 km/h, the next one third at 20 km/h and the last one third at 60 km/h. The average speed (in km /h) of the bus is