Two trains, A and B started travelling towards each other at the same time, from places P to Q and Q to P, respectively. After crossing each other, A and B took 9 hours and 16 hours to reach Q and P, respectively. If the speed of A was 56 km/h, then what was the speed (in km/h) of B?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 42.
Distance = Speed × Time
S1/S2 =
where S1, S2, and T1, T2 are the respective speeds and times of the objects.
S1 be the speed of A = 56/S2 =
S2 = 42 km/hr
The speed (in km/h) of B = 42 km/hr