defence exam BSF Constable (Tradesmen) 2023 Mock Test Quantitative Aptitude Speed Time and Distance Relative Speed
A car travels a distance of x km at a speed of 5\(\frac{5}{9}\) m/sec and returns at 5 m/sec to the starting point. If the total time taken by the car is 7\(\frac{3}{5}\) hours then the value of x (in km) is:
1
78
2
72
3
80
4
66