Aptitude - Question 18

+2 votes
In a stream running at 2 kmph, a motorboat goes 6 km upstream and back 
again to starting point in 33 min. Find speed of Motorboat in still water?

(A) 22 kmph 
(B) 26 kmph
(C) 33 kmph 
(D) 19 kmph
asked May 10 in Aptitude by getgatebook (25,660 points)
reshown May 11 by getgatebook

1 Answer

+4 votes
this can be solved by knowledge of upstream and downstream

and relation between time ,speed and distance.

let speed of boat =xkmph


6/(x+2) +6/(x-2) = 33/60

solve this eqn to get answer,you can check by option also
answered May 11 by tsankitjha910 (3,450 points)