defence exam CRPF SI Mock Test 2020 Quantitative Aptitude Speed Time and Distance Average Speed

A train covered 30% of a certain distance at 15 km/hr, 3/5th of the remaining distance cover at 21 km/hr and the remaining distance covered at 14 km/h. What is the average speed of the train?

1
21.75 km/hr
2
16.67 km/hr
3
12.5 km/hr
4
18.75 km/hr
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