A train covers first 18 km of its journey in 25 minutes and the remaining 12 km in 15 minutes. What is the average speed of the truck
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total distance=18000+12000m
=30000m
total time =25×60+15×60
=1500+900
=2400seconds
average speed=30000by2400
=300by24
=12.5m/sec
=30000m
total time =25×60+15×60
=1500+900
=2400seconds
average speed=30000by2400
=300by24
=12.5m/sec
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