7.In how much time will a train moving at a speed of 80 km/h cover a distance of 15
km?
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Given,
The speed of train = 80 km/h
To find,
The train will take how much time to cover a distance of 15 km.
Solution,
We can simply solve this mathematical problem by using the following mathematical process.
The train,
Covers 80 km in = 1 hour
Covers 80000m in = 3600 seconds
Covers 1m in = 3600/80000 seconds
Covers 15km or 15000m in = (3600×15000)/80000 = 675 seconds
Total time taken = 675 seconds = 660 seconds + 15 seconds = 11 minutes 15 seconds [As, 1 min = 60 seconds, 11 minutes = 660 seconds.]
Hence, the train taken 11 minutes 15 seconds to cover the distance of 15 km.
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