An intercity express train covers - th of
the distance at 80 km/h and the remaining
distance at 60 km/h. What is its average
speed for the entire distance?
Answers
Answered by
1
Answer:
68.57
Step-by-step explanation:
Average speed =2*s1*s2/s1+s2
2*80*60/80+60
=9600/140
=68.57
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