defence exam CRPF Head Constable Ministerial & ASI 2022 Mock Test Quantitative Aptitude Speed Time and Distance Average Speed
Find the average speed of train that covers a certain distance by running at 72 kmph for first 2 hours and at 80 kmph for next two hours.
1
72 kmph
2
80 kmph
3
76 kmph
4
74.5 kmph