Two boats A and B start towards each other from two places, 108 km apart. Speed of the boats A and B in still water are 12 km/h and 15 km/h respectively. If A proceeds down and B up the stream, they will meet after:
A. 4.5 hours
B. 4 hours
C. 5.4 hours
D. 6 hours
Answer: Option B
Solution(By Examveda Team)
Let the speed of the stream be x kmph and both the boats meet after t hour. According to the question, (12 + x) × t + (15 - x) × t = 108 Or, 12t + 15t = 108 Or, 27t = 108 ∴ t = $$\frac{{108}}{{27}}$$ = 4 hoursJoin The Discussion
Comments ( 1 )
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