Question

A car moves a distance of 200 km. It covers first half of the distance at speed 60 km/h and the second half at the speed v. If the average speed is the 40 km/h the value of v is​

Answer 1

Answer:

20 km/h

Step-by-step explanation:

first half speed = F = 60 km/h

second half speed = S = v km/h

average speed = 40 km/he

therefore average speed = F+S/2

40=60+v/2

80=60+v

v = 20