SOLUTION: trai A starts from a point at 1 pm with speed 30 km per hour and train B stars from same point at 2 pm with speed 40km per hour, both stopps at a station for 5 minutes after 10 km.
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Question 949122: trai A starts from a point at 1 pm with speed 30 km per hour and train B stars from same point at 2 pm with speed 40km per hour, both stopps at a station for 5 minutes after 10 km. which train will reach earlier if total distance coversd is 100 km ? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! Train A travels 100 km in (100 km/30 km/hr)=3.33 hours +5 minute stop.
Train B travels 100 km in (100 km/40 km/hr)=2.5 hours +5 minute stop.
However, since Train B left an hour later, he reaches the destination 3.5 hours after Train A started, therefore he is 10 minutes later than Train A.
ANSWER: Train A arrives at the destination first.
