railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Speed Time and Distance Boat and River
Which of the following statement is correct?
I. A boat travels 84 km downstream and 42 km upstream. If speed of boat and speed of stream are 6 km/hr and 2 km/hr respectively, then total time taken is 20 hours.
II. Length of a platform is 1200 meters. If a 600 meter long train can cross it in 30 seconds, then speed of train is 54 km/hr.
1
Only II
2
Neither I nor II
3
Only I
4
Both I and II