state gov MP Police Constable Mock Test 2023 Quantitative Aptitude Speed Time and Distance Average Speed
A train goes from P to Q with a speed u km/h, then from Q to R (QR = 2PQ) with a speed 3u km/h, and returns from R to P With a speed u/2 km/h. What is the average speed (in km/h) of the train for the entire journey starting from P and back to P?
1
18u/23
2
3u/2
3
4u/3
4
16u/23