Question

4. Ajay walked at an average speed of 8 km/h for 45 minutes and then ran at an average speed of 12 km/h
for 40 minutes. What was his average speed for the whole journey?​

Answer 1

GIVEN:

Ajay walked at average speed= 8km/hr

Time taken to cover the distance = 45minutes

Ajay ran at an average speed= 12km/hr

time taken to cover that distance= 40minutes

total walked distance:

45×8= 360

total runed distance:

12×40= 480

total covered distance:

480+360=840km=840000meters

total time taken:

8+40=48min= 2880sec

TO FIND:

The average speed:

average speed = total distance/total time

SOLUTION:

Average speed=840000/2880

average speed=291.6m/sec

ANSWER:

THE AVERAGE SPEED IS 291.6m/sec.