Question

A car travels with a speed 60 km/h in the initial one hour and with a speed of 40 km/h in the next
half hour Its average speed is
(A) 50 km/h
(B) 53. 33 km/h
(C) 48 km/h
(D) 70 km/h​

Answer 1

Answer:

53.33 km/h

Explanation:

total time = 1+1/2 hrs =3/2=1.5hrs

total distance =60+20=80km

hence, av.speed = 80/1.5= 53.33 km/ h