Discuss Forum
1. A person travels a certain distance at km/hr and reaches 15 min late. If he travels at 4 km/hr, he reaches 15 min earlier. The distance he has to travel is
- A. 4.5km
- B. 4.5km
- C. 4.5km
- D. 4.5km
Answer: Option B
Explanation:
15+15=30 mins =½ hour
So,
t'-t=1/2
or, d/v'-d/v=1/2
or, d/3-d/4=1/2
or, d=6 km
(ans)
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