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Boat and Stream: Overview and Concept Part 1 (in Hindi)
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Boat and Stream: Overview and Concept Part 1 This is a complete course on Boat and Stream for all competitive exams, especially for IBPS PO/CLERK and SBI PO/CLERK. The course is designed for all students, from zero to the highest level. Enjoy Maths. "Math Dikhta Hai" All the best.

Amar Sir is teaching live on Unacademy Plus

Amar Sir
Teaching with a unique way 'Math Dikhta Hai', developed over 24 years. Taught 50k+ students with 5k+ positive results

Unacademy user
Quite basic questions but really helpful. Thank you sir
sir ibps clerk main ke liye v high level di and caselet ka new course laye please.
  1. A renowned faculty of Objec Mathematics, Personal Interview/GD, General Studies, Indian History An experience of 24 yrs of teaching at Jamshedpur, Ranchi, Bokaro [Jharkhand], Sambalpur [Odisha]. Thousands of successful students in Bank/SSC/Railway/Civil Services tive unacade 1146 980K 108 Courses Lessons Followers Life time views 156K Amar Sir Math Dikhta Hai" Follow me on Unacademy:

  2. BANK PO/CLERK/SSC/RAILWAY Math Dikhta Hai" MATHEMATACS Boat andStrea unacade Amar Sir


  4. 10 - 3 : 7 2 Rebultant 2

  5. 1. Q.: A motor boat in still water travels at a speed of 36 km/h. It goes 56 km upstream in 1 hour 45 minutes. The time taken by it to cover the same distance down the stream will be: (a) 2 hours 25 minutes (b) 3 hours (c) 1 hour 24 minutes (d) 2 hours 21 minutes S 6 Km 13 h 56Km Downhtream time-km

  6. 2. Q.: A boat rows 1 km in 5 minutes, along the stream and 6 km in 1 hour against the stream. The speed of the stream is: (a) 3 km/h (b) 6 km/h (c) 10 km/h (d) 12 km/h 5min Km downstream 3 Kmlh 2. 2.

  7. 3. Q.: The speed of a boat in still water is 10 km/h. It covers (upstream) a distance of 45 km in 6 hours. The speed (in km/h) of the stream is: (a) 2.5 (b) 3 (c) 3.5 (d) 4 I5. 2: v= u-y -10-75 2.5 Km/h (a)

  8. 4. Q.: A man rows 40 km upstream in 8 hours and a distance of 36 km downstream in 6 hours. Then, the speed of stream is: (a) 0.5 km/h (b) 1.5 km/h (c) 1 km/h (d) 3 km/h 4o Km g hours 3.6 Km 6haua 5 Km/h 2 2. 0.5 Km/h

  9. 5. Q.: A boat goes 100 km downstream in 10 hours and 75 km upstream in 15 hours, then the speed of stream is: (a) 2 km/h (b) 2.5 km/h (c) 3 km/h (d) 3.5 km/h 10Km/h lo h 2 2. 15 h (6) Am

  10. 6. Q.: A boy can swim in still water at a speed of 10 km/h. If the speed of the current would have been 5 km/h, then the boy could swim 60 km: (a) Upstream in 4 hours (b) downstream in 12 hours (b) (c) upstream in 6 hours (d) downstream in 4 hours 5%n/h 60 Kr-

  11. 7. Q.: A person can row 1 km upstream in 10 minutes and downstream in 4 minutes. What is the speed of stream? (a) 4.5 km/h (b) 4 km/h (c) 9 km/h (d) 5.6 km/h 10 min 1 km 2 2. 2 --> 2:15 ) (a) An 60 min

  12. 8. Q.: A boat goes 20 km downstream in 1 hour and the same distance upstream in 2 hours. The speed of the boat in still water is: (a) 15 km/h (b) 10 km/h (c) 5 km/h (d) 7.5 km/h 20 Km 2 h /h x 20 Km/h 10 km 2 2 2 (a) Ans

  13. 10. Q.: A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the current is: (c)4:3(d) 3:1 Downntteam Upstream Time 2 Spend (x:y)

  14. 13. Q.: In a fixed time, a boy swims double the distance along the current that he swims against the current. If the speed of the current is 3 km/h, then the speed of the boy in still water is: (a) 6 km/h (b) 9 km/h (c) 10 km/h (d) 12 km/h Downntream:Upotream Dintance: 2 Speed (x:y): 2

  15. 15. Q.: A person can row 7.5 km/h in still water and he finds that it takes him twice as long to row up as to row down the river. The speed of the current is: (a) 2 km/h (b) 3 km/h (c) 2.5 km/h (d) 3.5 km/h DownptreamUpt ream 2 Speed (x:v)> 2 ILI (C)Aws

  16. 16. Q.: A motor boat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 hours and a half. If the speed of water is 1.5 km/h, then the speed of the boat in still water is: (a) 17 km/h (b) 19.5 km/h (c) 17.5 km/h (d) 19 km/h Downniream: Upntream : 3Shx 7 6 6 Spudx:)

  17. 17. Q.: A man can row at 5 km/h in still water. If the velocity of current is 1 km/h and it takes him 1 hour to row to a place and come back, then how far is the place? (a) 2.5 km/h (b) 3 km/h(c) 2.4 km/h (d) 3.6 km/h 6

  18. 18. Q.: The speed of a boat in still water is 6 km/h and the speed of the stream is 1.5 km/h. A man rows to a place at a distance of 22.5 km and comes back to the starting point. The total time taken by him is: (a) 10 hours (b) 4 hours 10 minutes (c) 6 hours 10 minutes (d) 8 hours Down

  19. 19. Question: A man can row at a speed of 5 km/hr in still water to a certain upstream point and back to the starting point in a river which flows at 2 km/hr. Find his average speed for total journey. (a) 9 km/hr (b) 4.2 km/hr (c) 8 km/hr (d) 6 km/hr (e)None of these Solution X 5+2-7 km/h, and Y - 5-2-3 km/h 2xY XtY 2x7x3 4.2 km/h Ans Average Speed 7+3

  20. 21. Ques: P, Q and R are the three towns on a river which flows uniformly are equidistant from P and R. I row from P to Q and back in 10 hrs and I can row from P to R in 4 hrs. Compare the speed of my boat in still water with that of the river. (a) 5:3 (b) 4: 3 (c) 6:5 (d) 7:3 (e) None of these 2hin Di IOhTA 10-2 ghin Down UP u:V-14+1):(4-1)/2 :3

  21. 1a: A boat cove 2u Km upstresm and 36 km down- tream m 6 hours , while it covers 36 Krn upstream and 24 Km downstream m 6 hours .Theapadotcumenth. (2) 8: A swimmer wim from a point 'A'azaimst a cwment cunent for ment s minut and comer to lhe poimt 'g' d) O 6 (3) 9: A boat aen 12 Km uptseam and come hack to lhe tartin point im 3 hours If apad INE eunrunt . 3 Km/h, lhen (a) 12 ()9 CC) d) 6 (H) O. The Pend et lh cunn ent n 5 Km/h. A motenhoat goes 10 Km upotzeam and back again to lha ntarting point in 5o minuler . Then Peed (ua km/h) INE emotenhoat in stiu watan: (a) 20 CA) 26 CC 2S d2 8

  22. (1) Q : Ahoat coven 2u Krn upat e9m and 36 km down- in 6 houm, while covers 36 Krn upstream and 24 Km downstream m 6 houm.Theapuercumenth. (1 6 2 G 10 U = 2= 10 Km/4

  23. (2) O: A ^wimmer ^ 'ma from a point A'agamat a current aaainnt a cument fox 5 mimutar and lhenAwim backward in favo hc cuarent for me t 5 minutes and comen to lhe point's Smin_ 3 60 60 0 6

  24. (3)0: A boat goen 12 km uptseam and come) hack to lhetaring Point iw 3 hou I p Ecunrunt is 3 m/h, Ihe (a) 12 C)9C) 3 () 6 C3) P down /2 u-3 2 G4 (u3 (u+3) (a) 12 2. - (d) 6 X