Question

a vehicle covers half the distance at a constant speed of 40km/hr n the other half at 60km/hr what is the avg speed

Answer 1

Answer:

48 km/hr

Step-by-step explanation:

formula is 2xy/x+y           x is the first speed

                                        y is the second speed

2*40*60/40+60=4800/100=48 km/hr