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This aptitude video provides 15 most important questions of boats and streams in general aptitude with solutions. For best practice viewers are advised to first try questions by themselves. Video can be used as a help in case of difficulty in solving problems. These questions are taken from last year ssc papers, bank papers and other similar exams and such type of aptitude questions on Boats and streams have high chances of appearing in future exams. Best for practice if you are preparing for quantitative aptitude, ssc exam, cat exam, bank exam, rrb bank, aptitude test questions and answers, general aptitude test, ibps bank po, bank po exams, gate aptitude questions, aptitude questions for placement, numerical aptitude, aptitude questions and answers for freshers. All the Best!! 00:23 Basics of Boats and Streams 07:36 Q1. A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is: a. 8.5 km/hr b. 10 km/hr c. 12.5 km/hr d. 9 km/hr 10:06 Q2. A man can row 18 kmph in still water. It takes him thrice as long to row up as to row down the river. Find the rate of stream. a. 18 kmph b. 36 kmph c. 9 kmph d. None of these 13:51 Q3. A man takes 3 hours 45 minutes to row a boat 15 km downstream of a river and 2 hours 30 minutes to cover a distance of 5km upstream. Find the speed of the boat’s in still water and rate of river current in km/hr. a. 3, 1 kmph b. 1, 3 kmph c. 2, 1 kmph d. 1, 2 kmph 17:52 Q4. A boat cover covers a distance of 2.75 km upstream in 11 minutes. The ratio between speed of current and that of boat downstream is 1:7 respectively. The boat covers distance between A and B downstream in 52 minutes. What is distance between A and B.? a. 18 km b. 18.8 km c. 18.6 km d. 18.2 km 21:53 Q5. A man can row 7.5 kmph in still water. If in a river running at 1.5 kmph, it takes him 50 minutes to row to a place and come back, how far off is the place? a. 3 km b. 4 km c. 5 km d. 6 km 25:49 Q6. A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is: a. 3 km/hr b. 4 km/hr c. 5 km/hr d. 6 km/hr 28:58 Q7. A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat in still water and stream is a. 3:1 b. 1:3 c. 2:4 d. 4:2 32:53 Q8. A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is: a. 1kmph b. 2kmph c. 1.5 kmph d. 2.5 kmph 37:07 Q9. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is: a. 4 mph b. 2.5mph c. 3mph d. 2 mph 41:03 Q10. A man can row at a speed of 12 km/hr in still water to a certain upstream point and back to the starting point in a river which flows at 3 km/hr. Find his average speed for total journey. a. 12 ¾ km/hr b. 11 ¾ km/hr c. 12 ¼ km/hr d. 11 ¼ km/hr 44:07 Q11. A swimmer swims from a point A against a current for 5 minutes and then swims backwards in favour of the current for next 5 minutes and comes to the point B. If AB is 100 metres, the speed of the current (in km per hour) is? a. 0.6kmph b. 6 kmph c. 0.06 kmph d. 60 kmph 48:34 Q12. A boat takes 38 hours for travelling downstream from point A to point B and coming back to point C midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B? a. 240 km b. 120 km c. 360 km d. 180 km 51:25 Q13. A boat sails downstream from point A to B, which is 10 km away from A, and then returns to A. If actual speed of the boat in still water is 3kmph, and the total upstream and downstream journey takes 12 hours. What must be the actual speed of boat for the trip from A to B to take exactly 100 minutes? a. 1kmph b. 2 kmph c. 3 kmph d. 4 kmph 57:03 Q14. At his usual rowing rate, Rahul can travel 12 miles downstream in a certain river in 6 hours less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his 24-mile round trip, the downstream 12 miles would then take only one hour less than the upstream 12 miles. What is the speed of the current in miles per hour? a. 2 1/3 mph b. 1 1/3 mph c. 1 2/3 mph d. 2 2/3 mph 01:03:43 Q15. A man can row 40km upstream and 55km downstream in 13 hours, also he can row 30km upstream and 44km downstream in 10 hours. Find the speed of the man in still water and the speed of the current. a. 3, 8 kmph b. 8, 3 kmph c. None of these d. Can’t be determined