Subject
Quantitative Aptitude
Topic
Speed & Distance
Two trains start from stations A and B and travel towards each other at speeds of 40 kmph and 90 kmph respectively. At the time of their meeting, the second train has travelled 100 km more than the first. The distance between A and B is
Two trains start from stations A and B and travel towards each other at speeds of 40 kmph and 90 kmph respectively. At the time of their meeting, the second train has travelled 100 km more than the first. The distance between A and B is
ক)
300 kmখ)
350 kmগ)
250 kmঘ)
260 kmঙ)
280 kmExplanation
Suppose the trains meet after time ‘t’ from starting. Distance travelled = Speed × Time Therefore in t hours train A will travel = 40 × t km Similarly in t hours train B will travel = 90 × t km Total Distance = (40 t + 90 t) km = 130 t km At the time of their meeting, the second train has travelled 100 km more than the first , So , 90 t – 40 t = 100 ⇒ 50 t = 100 ⇒ t = 2 So the total distance = 130 × 2 = 260 kmRelated questions
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