other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Speed Time and Distance Average Speed
A man travels 20 km with a speed of 2 kmph another 20 km with a speed of 4 kmph and next 30 km with a speed of 6kmph. Find the average speed of man?
1
4.25 kmph
2
4 kmph
3
3.75 kmph
4
3.5 kmph