UP TGT Mathematics Commercial Mathematics Test Series - Part 4
Two trains of length 140 m and 160 m are running on parallel tracks in opposite directions at 60 km/h and 48 km/h respec...
Type: MCQ • Marks: 1
Two trains of length 140 m and 160 m are running on parallel tracks in opposite directions at 60 km/h and 48 km/h respectively. How much time will they take to cross each other completely?
Options
A. 1) 10 seconds
B. 2) 15 seconds
C. 3) 12 seconds
D. 4) 8 seconds
Explanation
Relative speed = 60 + 48 = 108 km/h = 108 * (5/18) = 30 m/s. Total distance = 140 + 160 = 300 m. Time = 300 / 30 = 10 seconds.
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