A train leaving Dhaka at 6am reaches Mymansing at 10 am and another train leaving Mymensing at 7 am and reaches Dhaka at 12 noon. At what time the two trains running opposite direction should meet?

A train leaving Dhaka at 6am reaches Mymansing at 10 am and another train leaving Mymensing at 7 am and reaches Dhaka at 12 noon. At what time the two trains running opposite direction should meet? Correct Answer 8.40am

Let , after t hours of Train A's strat(6.00 a.m) they will meet ,therefore Train B will run for( t - 1) Hour as it starts at 7.00 am.Take distance = 100So, first train's speed = 100/4 = 25kmphSecond train's speed = 100 /5 = 20 kmphWe can built the equation based on distance covered by both train.25*t + 20(t - 1) = 10045*t = 120t = 120/45t = 8/3So t hours = 8/3 = 2hrs 40 minutesTherefore they will meet at (6 am + 2 hrs 40 min) = 8: 40 am
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