railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Quantitative Aptitude Speed Time and Distance Relative Speed
An aeroplane covers a certain distance at a speed of 320 km/h in \(5\frac{1}{2}\) hours, To cover the same distance in 4 hours, it must travel at a speed of.
1
460 km/h
2
440 km/h
3
420 km/h
4
450 km/h