100. A man completes 30 Km of a journey at 6 Km/hr and the remaining 40 Km in 5
hours. His average speed for the whole journey is
(A) 64 Km/hr
(B) 7 Km/hr )
(C) 77 Km/hr
(D) 8 Km/hr
Thr
24
22+4)
StemThao
Answers
Answered by
0
Step-by-step explanation:
Average speed = Total distance / Total Time taken
total distance = 30+40=70km
total time =30/6=5hr+40/5=8hr=13hr
Avg speed = 70/13=5.384 km/hr
Answered by
0
Answer:
Step-by-step explanation:
t1=30/6=5hours
average speed=30+40/5+5 =70/10=7 km/hr
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