Question

A Car travels alone a straight line
for first half time with speed to 40 km/hr
And the Second half time with Speed
60 km/hr find the average speed
of
the Car​

Answer 1

Answer:

in first time= 40km/hr

in second time=60km/hr

average speed = 40+60/2 = 100/2 = 50km/hr

Answer 2

Answer:

Average speed is total distance travelled divided by total time taken.

Let the distance travelled is 2x or half of distance is x.

The first half of distance x is travelled with speed of 40km/hr , so time taken is x/40hr.

Similarly time taken to travel remaining x km is at speed of 60km/hr, so time taken for this 2nd half of distance is x/60.

Now, total time taken to travel 2x distance is x/40+x/60 hr or 3x/120+2x/120hr or 5x/120 hr or x/24 hr.

The average speed of car is 2x/x/24 or 2*24 km/hr or 48km/hr.

Step-by-step explanation:

i hope this helps you ❤️