Question

A cyclist covers a distance of 60km at the speed of 40km/h and another distance of 50km at a speed of 30km/h. find his average speed for the whole journey.​

Answer 1

Answer:

AS=41.25 km/h

Step-by-step explanation:

i) T= D/S                                                  ii) T=D/S

  T=60/40                                                  T= 50/30

  T= 3/2 hrs                                                T= 5/3 hrs

Total D= 60+50=110 km

Total T= 5/3+3/2=8/3 hrs

Average Speed= D/T

                           110 / 8/3

                           110 x 3/8

AS=41.25 km/h