Walking at 60% of his usual speed, a man reaches his destination 1 hr 40 minutes late. His ususal time (in hrs.) to reach the destination is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 2 hour 30 minutes.
Speed = 3 : 5
Time = 5 : 3
Difference of time = 2 unit = 1 hr 40 min
1 unit = 50 min
Actual time = 3 unit = 2 h 30 min