A train covers the first half of the distance between two stations at a speed
of 40 km/hour the other half at 60 km/hour. Then its average speed is :
(a) 100Km/h (b) 48 km/h (c) 52 Km/h (d) None of these
Answers
Answered by
0
Answer:
d) none of these answer
answer is 50km/h
MARKS AS BRAINLIST
Answered by
3
Answer:let distance =120km
time taken to cover 1st half distance at the speed of 40km/hr= 60/40=1.5 hour.
time taken to cover 2nd half distance @60km/hr=60/60=1 hour
Average speed = total dist/total time( 120/2.5=48)
48….....….….........……..
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