Question

a dog runs 100 m in first 50 seconds 80 m in next 30 sec and 45 m in next 35 secs .What is the average speed

Answer 1

Answer:

total distance/total time taken 100+80+45/50+45+30=255.9m/s

Explanation:

Answer 2

Explanation:

Total distance traveled = (100+80+45) m

= 225 m

Total time taken = (50+30+35) sec

= 115 sec

Average speed = Total distance traveled/Total time taken

= 225/115 m/sec

= 45/23 m/sec

= 1 22/23 m/sec