Question

A man covers a distance of 40 km he covers first 10 km/h second 10 km 20 km/ h third 10 km 30 km/h and last 10 km 40km/h what is the average speed of man

Answer 1

Answer:

19.2 kmph

Step-by-step explanation:

here for avarage speed we just need to find taken time.

so. t = t1+t2+t3+t4

       =10/10+10/20+10/30+10/40

      =2.0833h

so , Vavg = 40/2.0833 = 19.2 KM/H