Question

Three men starts their journey from same place with speed of 6 km/hr , 8 km/hr and 12 km/hr respectively at 10:00 am , 11:00 am and 1:00 pm respectively . When second man meets the first man , then first man starts moving towards starting point and meet the third man . At what time first man meets the third man ?

Answer 1

Answer:

2:40 PM

Step-by-step explanation:

• man 1 is A
• man 2 is B
• man 3 is C.

1. up to 11 Man A travel 6 kilometre
2. after that A and B relative speed is 2 kilometre per hour
3. for B covering the 6 kilometre required 3 hours it minutes in clock 2 o'clock
4. Man C is already started the journey at 1 o'clock so up to 2 o clock covers 12 kilometre
5. but man A and B meet at a distance 24 km
6. it means distance from meeting point of man A and B and Man C is 12 kilometre
7. relative speed of A and C is addition of both the speed because they are travel towards so speedies 18 kilometre per hour
8. and distance between both of them is 12 kilometre so required time to meet A and C is 40 minutes
9. it means A and C meet at 2:40 pm