Two stations p and q are 150 km apart on a straight track. One train starts from p at 8 a.M and travels towards q at 15 kmph. Another train starts from q at 9 a.M and travels towards p at a speed of 30 kmph. At what time will they meet?
Answers
Answered by
2
Explanation:
Given Two stations p and q are 150 km apart on a straight track. One train starts from p at 8 a.M and travels towards q at 15 kmph. Another train starts from q at 9 a.M and travels towards p at a speed of 30 kmph. At what time will they meet?
- Assume both the trains meet after t hours after 8 am.
- Distance covered by train starting from P in t hours = 15 t km
- Distance covered by train starting from Q in (t – 1) hours = 30 (t – 1)
- So total distance = 150 km
- 15 t + 30 (t – 1) = 150
- 15 t + 30 t – 30 = 150
- 45 t = 180
- Or t = 180 / 45
- Or t = 4 hrs
So they will meet after 4 hours after 8 am that is they will meet at 12 pm.
Similar questions