Please answer this question correctly and give correct explanation
Attachments:
Answers
Answered by
2
Answer:
(B) 53.33 km/h
Step-by-step explanation:
total distance = (60×1)+(40×1/2) = 60 + 20 = 80 km
time taken = 1 + 1/2 = (2+1)/2 = 3/2
Average speed = total distance / total time taken
= 80 / (3/2) = 80 × 2/3 = 160/3 = 53.33 km/h
Similar questions