Two boats A and B start towards each other from two places, 150 km apart. Speed of the boat A and B in still water are 16 km/hr and 14 km/hr respectively. If A proceeds down and B up the stream, they will meet after.
4.5 hours
4 hours
5 hours
6 hours
Explanation:
Let the speed of the stream be x kmph and both the boats meet after t hours.
According to the question,
Distance covered while going downstream + Distance covered while going upstream = Total Distance
⇒ (16 + x) t + (14 – x) t = 150
⇒ 16t + 14t = 150
⇒ 30t = 150
⇒ t = 5 hrs
Let the speed of the stream be x kmph and both the boats meet after t hours.
According to the question,
Distance covered while going downstream + Distance covered while going upstream = Total Distance
⇒ (16 + x) t + (14 – x) t = 150
⇒ 16t + 14t = 150
⇒ 30t = 150
⇒ t = 5 hrs