General Aptitude › Time and Distance › Question #4687
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QOn a straight route, two stations P and Q are 110 kilometres apart. One train departs from P at 7 a.m. and goes at 20 kmph to Q. Another train departs from Q at 8 a.m. and goes at a speed of 25 kmph towards P. When are they going to meet?

ID: #4687 Time and Distance 188 views
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#4687Q ID
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Time and DistanceTopic
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  • A 10:30 a.m. ✔ ✖
  • B 10:00 a.m. ✔ ✖
  • C 10:40 a.m. ✔ ✖
  • D 10:24 a.m. ✔ ✖
Correct Answer

Explanation


using the formula for distance, which is distance = speed x time, to find the distance covered by each train in a given time period.

You are then setting the sum of the distances covered by both trains equal to the total distance between P and Q, 

which is 110 km. 

By solving this equation, you find that the trains meet after 3 hours, 

which means they meet at 10 a.m.
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