Q: A and B start at the same time to reach the same destination. B travelled at 5/7 of A's speed and reached the destination 1 hour 20 minutes after A. What was the time taken by B to reach the destination?
(a)4 hours 40 minutes
(b)4 hours 55 minutes
(c)5 hours 5 minutes
(d)5 hours 15 minutes
Correct Answer: (a)
The correct answer is (b): 4 hours 55 minutes. Subject: General Science | Sub-topic: Physics - Mechanics