A train m leaves meerut at 5 a.m. and reaches delhi at 9 a.m. another train leaves delhi at 7 a.m. and reaches meerut at 10.30 a.m. at what time do the two trains_lavel3 cross each other ?
Choose the correct answer
A) 7:56am B) 7:58am C) 7:46am D) 8:56am E) 6:56am
Let the total distance be x   so the speed of 1st train is x/4 and 2nd train x/3.5   In 2 hours 1st train covers half of the total distance .   so remaining is only half of the total distance(ie x/2).   let t be the time taken   t*x/4 + t*x/3.5 = x/2   t=14/15 i.e. 56 min   ie   total time taken= 2 hrs + 56 min   time they cross each other is 7:56am   7:56amNSWER:7:56am
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A train m leaves meerut at 5 a.m. and reaches delhi at 9 a.m. another train leaves delhi at 7 a.m. and reaches meerut at 10.30 a.m. at what time do the two trains_lavel3 cross each other ?