a train covers a distance of 65 km in 45 minutes and another 85 kilometres in one hour and 15 minutes. find the average speed for the journey.
pls explain with steps......
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Answer:
75km/hr
Explanation:
total distance =150km
total time taken=120min
so,
Average speed=Total distance /total time taken
=150/120km/min
convert in km/hr so ,we get 15×60/12 km/hr
Avg. speed =75km/hr
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