Respuesta :
Answer:
70 km/hr
Step-by-step explanation:
You just have to add both of the average velocity as you are finding the combined average velocity of both vehicles
Total velocity for taxis = 25 x 40 = 1000
Total velocity for trucks = 35 x 30 = 1050
Combined average velocity = (1000 + 1050) / (25 +35) = 2050 / 60 = 34.1666… = 34 1/6 km/hr
Total velocity for trucks = 35 x 30 = 1050
Combined average velocity = (1000 + 1050) / (25 +35) = 2050 / 60 = 34.1666… = 34 1/6 km/hr