Question

A car moves at a constant speed 60km/hr for 1km 40km /hr for next 1km what is the average speed​

Answer 1

Answer:

48km/hr

Step-by-step explanation:

Now,For 1st Km , speed is 60 km/hr and distance is1 km, then

Time = distance/speed = 1/60 Km/hr

For next 1 Km, speed is 40 km/hr and distance is 1 km,

so Time

= distance/speed = 1/40 Km/hr

Now, we know that,

Average Speed =Total Distance / Total Time

= (1 + 1) / (1/60 + 1/40)

= 2 × 2400/100

= 48 Km/hr

Hence ,the average speed of the car is 48 Km/hr