defence exam BSF Constable (Tradesmen) 2023 Mock Test Quantitative Aptitude Speed Time and Distance Average Speed
A man covers a certain distance at the speed of 20 km/hr and half of the previous distance with a speed of 40 km/hr. Find the average speed of the person in the whole journey.
1
20 km / hr
2
24 km / hr
3
30 km / hr
4
25 km / hr