101. The boat covers 216 km upstream in 6 hours and the ratio of the downstream speed of the boat to the speed of the stream is 5:1. Find the time taken by boat to cover 144 km in still water?

एक नाव धारा के प्रतिकूल 216 किमी की दूरी 6 घंटे में तय करती है और नाव की धारा के अनुकूल गति से धारा की गति का अनुपात 5:1 है। नाव द्वारा स्थिर जल में 144 किमी की दूरी तय करने में लगने वाला समय ज्ञात कीजिए?

A. 2 hours
B. 6 hours
C. 3 hours
D. 4 hours
E. None of these

Option “C” is correct.

Let the speed of the stream = x

Downstream speed of the boat = 5x

The speed of the boat in still water = 5x – x = 4x

The upstream speed of the boat = 4x – x = 3x

The upstream speed of the boat = 216/6 = 36 km/hr

3x = 36

x = 12

The speed of the boat in still water = 12 * 4 = 48 km/hr

Required time = 144/48 = 3 hours

102. The time taken by the boat to cover 100 km downstream is equal to the time taken by the same boat to cover 50 km upstream. Find the ratio of the speed of the boat in still water to the speed of the stream.

धारा के अनुकूल 100 किमी की दूरी तय करने में नाव द्वारा लिया गया समय धारा के प्रतिकूल 50 किमी की दूरी तय करने में उसी नाव द्वारा लिए गए समय के बराबर है। स्थिर जल में नाव की गति से धारा की गति का अनुपात ज्ञात कीजिए।

A. 2:1
B. 4:3
C. 3:1
D. 5:2
E. None of these

Option “C” is correct.

Let the speed of the boat in still water = a

And the speed of the stream = b

100/(a + b) = 50/(a – b)

2 * (a – b) = a + b

2a – 2b = a + b

a = 3b

a/b = 3/1

Therefore, ratio of the speed of the boat in still water to the speed of the stream = 3:1

103. Ratio of the downstream speed of the boat to the speed of the boat in still water is 5:4 and the total time taken by the boat to cover 300 km in still water and 500 km in downstream is 35 hours. Find the upstream speed of the boat?

नाव की धारा के अनुकूल गति से स्थिर जल में नाव की गति का अनुपात 5:4 है और नाव द्वारा स्थिर जल में 300 किमी और धारा के अनुकूल में 500 किमी की दूरी तय करने में लिया गया कुल समय 35 घंटे है। नाव की धारा के प्रतिकूल गति ज्ञात कीजिए?

A. 25 km/hr
B. 20 km/hr
C. 10 km/hr
D. 15 km/hr
E. None of these

Option “D” is correct.

Downstream speed of the boat = 5x

Speed of the boat in still water = 4x

300/4x + 500/5x = 35

75/x + 100/x = 35

175/x = 35

x = 5

Speed of the boat still water = 4 * 5 = 20 km/hr

Speed of the current = 5 * 5 – 4 * 5 = 25 – 20 = 5 km/hr

Upstream speed of the boat = 20 – 5 = 15 km/hr

104. Ratio of the time taken by the boat covers a certain distance along with stream and the same boat covers the same distance against the stream in 1:3. Find the ratio of the speed of the boat in still water to stream?

नाव द्वारा धारा के साथ एक निश्चित दूरी तय करने में लगने वाले समय और उसी नाव द्वारा धारा के विपरीत समान दूरी को तय करने में लगने वाले समय का अनुपात 1:3 है। स्थिर जल में नाव की गति से धारा की गति का अनुपात ज्ञात कीजिये?

A. 2:1
B. 3:1
C. 3:2
D. 4:3
E. Cannot be determined

Option “A” is correct.

D/(B + W) = x

D = x * (B + W)

D/(B – W) = 3x

D = 3x * (B – W)

x * (B + W) = 3x (B – W)

B + W = 3B – 3W

2B = 4W

B/W = 2/1

105. Ratio of the speed of boat A in still water and speed of boat B in still water is 5:4 and the ratio of the speed of current and downstream speed of boat A is 1:6. If boat A covers 80 km upstream in 4 hours, then find downstream speed of boat B?

शांत जल में नाव A की गति और शांत जल में नाव B की गति का अनुपात 5:4 है और धारा की गति और नाव A की अनुप्रवाह गति का अनुपात 1:6 है। यदि नाव A ऊर्ध्वप्रवाह 80 किमी की दूरी 4 घंटे में तय करती है, तो नाव B की अनुप्रवाह गति ज्ञात कीजिए?

A. 20 kmph
B. 25 kmph
C. 24 kmph
D. 30 kmph
E. 28 kmph

Option “B” is correct.

Upstream speed of boat A = 80/4 = 20 kmph

Downstream speed of boat A = 6x

Speed of stream = x

Speed of boat A – x = 20

Speed of boat A = 6x – x = 5x

5x – x = 20

x = 5 kmph

Speed of boat A = 5 * 5 = 25 kmph

Speed of boat B = 25 * 4/5 = 20 kmph

Downstream Speed of boat B = 20 + 5 = 25 kmph

106. The time taken by the boat to cover 180 km upstream is equal to the time taken by the same boat to cover 300 km downstream. Find the ratio of the speed of the boat in still water to stream.

नाव द्वारा धारा के प्रतिकूल 180 किमी की दूरी तय करने में लिया गया समय, धारा के अनुकूल 300 किमी की दूरी तय करने में उसी नाव द्वारा लिए गए समय के बराबर है। शांत जल से धारा में नाव की गति का अनुपात ज्ञात कीजिए।

A. 2:1
B. 3:1
C. 4:1
D. 3:2
E. 5:1

Option “C” is correct.

180/(x – y) = 300/(x + y)

5x – 5y = 3x + 3y

2x = 8y

x/y = 4/1

107. A boat rows 60 km distance downstream and comeback in 9 hours and the ratio of the speed of downstream to upstream is 2:1, then find the speed of the stream?

एक नाव 60 किमी की दूरी 9 घंटे में तय करके वापस आती है और अनुप्रवाह से उर्धव्प्र्वाह गति का अनुपात 2: 1 है, फिर धारा की गति ज्ञात करें?

A. 4 kmph
B. 5 kmph
C. 8 kmph
D. 10 kmph
E. None of these

Option “B” is correct.

Distance = speed * time

60/2x + 60/x = 9

180/2x = 9

x = 10

Speed of the stream = 1/2 ( 2x – x)

= 1/2 * (10) = 5 kmph

108. The boat covers 180 km and the ratio of the time taken by the boat goes with stream and against stream is 3:5. If the speed of the boat in still water is 10 kmph, then what is the speed of the stream?

नाव 180 किमी की दूरी तय करती है और नाव द्वारा धारा के साथ और धारा के विपरीत लिए गए समय का अनुपात 3: 5 है। यदि शांत पानी में नाव की गति 10 किमी प्रति घंटा है, तो धारा की गति क्या है?

A. 2.5 kmph
B. 5 kmph
C. 8 kmph
D. 7.5 kmph
E. None of these

Option “A” is correct.

(180/(10 + x)) / (180/(10 – x)) = 3/5

(10 – x)/ (10 + x) = 3/5

3x + 30 = 50 – 5x

8x = 20

x = 2.5 kmph

109. The ratio of speed of current to speed of the boat is 5: 11. If the boat goes downstream in 3 hours 30 minutes, then it will return in

धारा की गति से नाव की गति का अनुपात 5: 11 है। यदि नाव 3 घंटे 30 मिनट में अनुप्रवाह जाती है, तो यह कितने समय में वापस आ जाएगी?

A. 9 hours 20 mins
B. 10 hours
C. 8 hours 40 mins
D. 6 hours 50 mins
E. 7 hours 45 mins

Option “A” is correct.

The ratio of speed of current to that of speed boat is 5: 11

From this ratio of speed of upstream = 11 – 5 = 6

Speed of downstream = 11 + 5 = 16

Distance same

16 × 3 (½) = 6 × x

= > x = 9 (1/3) = 9 hours 20 mins

110. Ratio of the speed of the boat in still water and stream is 4:3 and the ratio of the speed of boat row along with current and against current is 7:1, what is the speed of the stream?

स्थिर पानी और धारा में नाव की गति का अनुपात 4: 3 है और धारा के साथ और धारा के विपरीत नाव की गति का अनुपात 7: 1 है, धारा की गति क्या है?

A. 10 kmph
B. 5 kmph
C. 15 kmph
D. 20 kmph
E. Cannot be determined

Option “E” is correct.

Speed of the stream = 3x

Speed of the boat in still water = 4x

Downstream speed = 7y

Upstream speed = y

7y = 3x + 4x

x = y

We cannot find the answer.

62 thoughts on “Boat and Stream Questions”

  1. You really make it appear really easy with your presentation but I
    to find this topic to be really one thing that I feel I might by no
    means understand. It kind of feels too complex and very wide for me.
    I am looking forward on your subsequent post, I’ll
    try to get the cling of it! Najlepsze escape roomy

  2. Howdy! Do you know if they make any plugins to help with SEO?
    I’m trying to get my site to rank for some targeted keywords but I’m
    not seeing very good results. If you know of any please share.
    Kudos! I saw similar art here: Warm blankets

  3. sugar defender official website Finding Sugar Defender has
    actually been a game-changer for me, as I have actually constantly been vigilant about handling
    my blood glucose levels. With this supplement, I feel equipped to take
    charge of my health, and my latest clinical examinations have actually shown a significant
    turnaround. Having a trustworthy ally in my edge offers me with a sense of security and reassurance,
    and I’m deeply happy for the extensive difference Sugar Defender has
    made in my wellness.

  4. sugar defender official website As somebody who’s always bewared regarding my blood sugar,
    locating Sugar Defender has actually been an alleviation. I really feel a lot
    more in control, and my recent exams have actually revealed favorable enhancements.
    Knowing I have a trustworthy supplement to support my regular provides me peace of mind.
    I’m so happy for Sugar Defender’s influence
    on my health!

  5. A fascinating discussion is worth comment. I believe that you need to write more on this topic, it might not be a taboo matter but typically folks don’t speak about these topics. To the next! Many thanks!

  6. Realizing the potential revenue within the sale of pop tradition autographs, many sellers additionally would watch for hours for a star to emerge from a location, current a number of images for the movie star to signal and then sell most of them.

  7. Wow, great stuff. I have been studying this for a few years. I’m glad to hopefully find someone that comes to the same conclusions as me. At least it seems that’s the case. I’ll keep visiting your site to stay informed.

  8. This is really stimulating, You’re particularly seasoned article writer. I have signed up with your feed additionally count on enjoying the amazing write-ups. Plus, We’ve shared your web sites in our social networks.

  9. I simply couldn’t leave your web site prior to suggesting that I extremely loved the usual info an individual provide in your guests? Is gonna be again continuously in order to investigate cross-check new posts.

  10. Certainly I like your web-site, however you have to take a look at the spelling on quite a few of your posts. Several of them are rife with spelling problems and I find it very troublesome to inform you. However I’ll definitely come back again!

  11. I will right away seize your rss feed as I can not in finding your e-mail subscription link or e-newsletter service. Do you’ve any? Kindly let me recognize so that I may subscribe. Thanks.

  12. I must thank you for the efforts you’ve put in writing this website. I’m hoping to see the same high-grade blog posts from you in the future as well. In truth, your creative writing abilities has inspired me to get my very own site now 😉

  13. Whats rough now is how the programmed look to ones life is not changed. This may sound confusing? It’s almost as if we blitz through our lives with blinders on, not accepting the true meaning of our own existence.

  14. What your declaring is fully true. I know that everyone need to say the very same matter, but I just assume that you put it in a way that everybody can recognize. I also appreciate the images you place in the following. They match so properly with what youre making an attempt to say. Im positive youll get to so a lot of people today with what youve received to say.

  15. Its like you read my mind! You appear to know so much about this, like you wrote the book in it or something. I think that you can do with a few pics to drive the message home a little bit, but instead of that, this is wonderful blog. A great read. I will definitely be back.

  16. Good day! This is kind of off topic but I need some help from an established blog. Is it very difficult to set up your own blog? I’m not very techincal but I can figure things out pretty fast. I’m thinking about setting up my own but I’m not sure where to begin. Do you have any ideas or suggestions? Cheers

  17. I’m speechless. This is a very good blog and really attractive too. Nice work! That’s now not in reality so much coming from an beginner publisher like me, but it’s all I may just say after diving into your posts. Nice grammar and vocabulary. No longer like other blogs. You truly understand what you?re talking about too. Such a lot that you made me wish to discover more. Your weblog has transform a stepping stone for me, my friend.

  18. Spot up for this write-up, I truly feel this fabulous website requirements a great deal more consideration. I’ll probably be once more to learn considerably more, thanks for that information.

  19. This is the fitting weblog for anybody who desires to seek out out about this topic. You notice a lot its virtually arduous to argue with you (not that I really would want…HaHa). You undoubtedly put a new spin on a subject thats been written about for years. Nice stuff, just great!

  20. Thank you for some other magnificent article. The place else could anybody get that type of information in such a perfect means of writing? I’ve a presentation next week, and I am on the search for such information.

  21. The guidelines you provided here are really useful. It was such an enjoyable surprise to have that awaiting me as i woke up this very day. They are constantly to the point and easy to understand. Thanks for your time for the innovative ideas you’ve shared above.

  22. When I originally commented I clicked the -Notify me when new comments are added- checkbox and already whenever a comment is added I am four emails with the exact same comment. Will there be by any means you may eliminate me from that service? Thanks!

  23. This is the right web site for everyone who hopes to understand this topic. You know a whole lot its almost hard to argue with you (not that I really would want to…HaHa). You certainly put a brand new spin on a subject that has been written about for years. Wonderful stuff, just great.

  24. An impressive share, I just given this onto a colleague who was carrying out a little analysis within this. And the man in fact bought me breakfast because I came across it for him.. smile. So ok, i’ll reword that: Thnx to the treat! But yeah Thnkx for spending time go over this, I’m strongly about it and enjoy reading much more about this topic. If you can, as you become expertise, can you mind updating your website to comprehend details? It truly is highly great for me. Big thumb up just for this short article!

  25. When I originally commented I clicked the -Notify me when new surveys are added- checkbox and from now on each time a comment is added I get four emails sticking with the same comment. Is there however you may get rid of me from that service? Thanks!

  26. Whats up very cool web site!! Man .. Beautiful .. Superb .. I will bookmark your web site and take the feeds additionally…I am happy to find a lot of useful information here in the put up, we want develop extra techniques on this regard, thank you for sharing.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top