# Top 210 Most Asked Boat and Stream Questions [ 100% FREE ]

Navigating through competitive exams requires a clear understanding of various topics, one of which is boat and stream questions. The world of boats and streams is not just about boats moving on water; it’s about understanding the intricate dance between the boat and the water’s flow. And in the realm of competitive exams, this dance translates into boat and stream questions that challenge, intrigue, and test the understanding of aspirants.

One of the primary reasons behind the popularity of boat and stream questions in Government exams is their real-world applicability. Imagine a boat navigating the waters of a stream. The way it maneuvers against or along the stream can be mathematically modeled, and this forms the basis of boat and stream questions. Given their relevance, it’s no surprise that these questions often make an appearance in the quantitative aptitude section of various exams, carrying a weightage of 1-3 marks.

But before diving headlong into boat and stream questions, it’s vital to grasp the fundamental concepts associated with boats and streams. At the heart of these questions lies the boat and stream formula. This formula, crucial for solving boat and stream questions, breaks down the dynamics of boats in different water conditions. And for those eager to delve deep into the topic, our boat and stream formula pdf offers a detailed look into the mathematical intricacies of the concept.

Understanding boats and streams is about more than just formulas; it’s about visualizing various scenarios. Consider a boat moving against the flow of water. This is termed as ‘upstream’. The speed at which the boat moves in this scenario gives us the upstream speed. On the other hand, when the boat aligns with the water’s flow, moving with the current, it’s called ‘downstream’, and we measure its net speed as the downstream speed. And of course, there are times when waters are calm, and we’re dealing with ‘still water’ scenarios, where the water speed is zero.

For many aspirants, especially those who prefer reading in Hindi, we’ve curated boat and stream questions in Hindi. This ensures that everyone, regardless of their language preference, has equal access to this crucial topic. Moreover, our boat and stream questions pdf provides a handy compilation of these questions, making it easier for aspirants to practice and master the topic.

In conclusion, boat and stream questions are not just another topic; they are a doorway to understanding the beautiful interplay between motion and resistance, between man-made vessels and nature’s flow. Whether you’re seeking the boat and stream formula or practicing with our boats and streams problems, remember that each question brings you one step closer to mastering this vital topic for your exams.

## Top 210 Most Asked Boat and Stream Questions

 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 hoursB. 6 hoursC. 3 hoursD. 4 hoursE. None of these Option “C” is correct.Let the speed of the stream = xDownstream speed of the boat = 5xThe speed of the boat in still water = 5x – x = 4xThe upstream speed of the boat = 4x – x = 3x The upstream speed of the boat = 216/6 = 36 km/hr3x = 36x = 12The speed of the boat in still water = 12 * 4 = 48 km/hrRequired 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. 2:1B. 4:3C. 3:1D. 5:2E. None of theseOption “C” is correct.Let the speed of the boat in still water = aAnd the speed of the stream = b100/(a + b) = 50/(a – b)2 * (a – b) = a + b2a – 2b = a + ba = 3ba/b = 3/1Therefore, 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/hrB. 20 km/hrC. 10 km/hrD. 15 km/hrE. None of theseOption “D” is correct.Downstream speed of the boat = 5xSpeed of the boat in still water = 4x300/4x + 500/5x = 3575/x + 100/x = 35175/x = 35x = 5Speed of the boat still water = 4 * 5 = 20 km/hrSpeed of the current = 5 * 5 – 4 * 5 = 25 – 20 = 5 km/hrUpstream 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. 2:1B. 3:1C. 3:2D. 4:3E. Cannot be determinedOption “A” is correct.D/(B + W) = xD = x * (B + W)D/(B – W) = 3xD = 3x * (B – W)x * (B + W) = 3x (B – W)B + W = 3B – 3W2B = 4WB/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 kmphB. 25 kmphC. 24 kmphD. 30 kmphE. 28 kmphOption “B” is correct.Upstream speed of boat A = 80/4 = 20 kmphDownstream speed of boat A = 6xSpeed of stream = xSpeed of boat A – x = 20Speed of boat A = 6x – x = 5x5x – x = 20x = 5 kmphSpeed of boat A = 5 * 5 = 25 kmphSpeed of boat B = 25 * 4/5 = 20 kmphDownstream 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. 2:1B. 3:1C. 4:1D. 3:2 E. 5:1Option “C” is correct.180/(x – y) = 300/(x + y)5x – 5y = 3x + 3y2x = 8yx/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 kmphB. 5 kmphC. 8 kmphD. 10 kmphE. None of theseOption “B” is correct.Distance = speed * time60/2x + 60/x = 9180/2x = 9x = 10Speed 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 kmphB. 5 kmphC. 8 kmphD. 7.5 kmph E. None of theseOption “A” is correct.(180/(10 + x)) / (180/(10 – x)) = 3/5(10 – x)/ (10 + x) = 3/53x + 30 = 50 – 5x8x = 20x = 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 inधारा 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 minsB. 10 hoursC. 8 hours 40 minsD. 6 hours 50 minsE. 7 hours 45 minsOption “A” is correct.The ratio of speed of current to that of speed boat is 5: 11From this ratio of speed of upstream = 11 – 5 = 6Speed of downstream = 11 + 5 = 16Distance same16 × 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 kmphB. 5 kmphC. 15 kmphD. 20 kmphE. Cannot be determinedOption “E” is correct.Speed of the stream = 3xSpeed of the boat in still water = 4xDownstream speed = 7yUpstream speed = y7y = 3x + 4xx = yWe cannot find the answer.