# 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

 141. Speed of boat in still water is 10 km/h. It takes 6 hours to go upstream and 2 hours to go downstream distance between two points. What is the speed of stream?शांत जल में नाव की गति 10 किमी/घंटा है। दो बिंदुओं के बीच धारा के प्रतिकूल जाने में 6 घंटे और धारा के अनुकूल जाने में 2 घंटे का समय लगता है। धारा की गति क्या है?A. 4 km/hB. 5 km/hC. 3 km/hD. 2 km/hE. 1 km/h Option “B” is correct.Speed of stream= x km/hNow distance equal(10 – x) × 6 = (10 + x) × 260 – 6x = 20 + 2x 8x = 40x = 5 km/h 142. If the ratio of the time taken by the boat travels 180 km upstream to downstream is 2: 1 and the speed of the stream is 5 kmph, then find the speed of the boat in still water?यदि नाव द्वारा धारा के प्रतिकूल 180 किमी से धारा के अनुकूल की यात्रा करने में समय का अनुपात 2: 1 है और धारा की गति 5 किमी प्रति घंटा है, तो शांत पानी में नाव की गति ज्ञात कीजिए?A. 10 kmphB. 15 kmphC. 20 kmphD. 25 kmphE. None of these Option “B” is correct.(180/(x – 5))/(180/(x + 5)) = 2/1x + 5 = 2x – 10x = 15 kmph 143. If the ratio of the speed of the boat can travel along with current to against current is 2: 1 and the speed of the stream is 10 kmph, then what is the speed of the boat in still water?यदि धारा के साथ यात्रा करने वाली नाव की गति से धारा के विपरीत यात्रा करने वाली नाव की गति का अनुपात 2: 1 है और धारा की गति 10 किमी प्रति घंटा है, तो शांत जल में नाव की गति क्या है?A. 20 kmphB. 25 kmphC. 30 kmphD. 15 kmphE. None of theseOption “C” is correct.10 = 1/2(2x – x)20 = xSpeed of the downstream = 2 * 20 = 40Speed of the boat in still water = 1/2(40 + 20) = 30 kmph 144. A boat can cover 21 km in the direction of current and 15 km against the current in 3 hours each. Find the speed of current.एक नाव धारा की दिशा में 21 किमी और धारा की विपरीत दिशा में 15 किमी 3 घंटे में तय कर सकती है। धारा की गति ज्ञात कीजिये।A. 1km/hrB. 5km/hrC. 7.5km/hrD. 2km/hrE. None of theseOption “A” is correct.Downstream speed = 21/3 = 7 km/hrUpstream speed = 15/3 = 5 km/hrSo speed of current = 1/2 * (7-5) = 1 km/hr 145. The speed of boat in still water is 8km/hr. A man can row his boat against the current at 4km/hr. what is the speed of downstream?शांत जल में नाव की गति 8 किमी/घंटा है। एक व्यक्ति अपने नाव को धारा के विरुद्ध (उर्ध्वप्रवाह) 4 किमी/घंटा से चला सकता है। अनुप्रवाह (धारा के साथ) गति क्या है?A. 8km/hrB. 12km/hrC. 16km/hrD. 2km/hrE. None of theseOption “B” is correct.Speed of downstream = speed in still water + speed of water=8+4=12km/hr 146. The speed of the stream is 4 kmph and the boat travels 60 km along with stream in 3 hours. What is the time taken by the boat travels same distance in against the stream?धारा की गति 4 किमी प्रति घंटा है और नाव धारा के साथ 60 किमी की यात्रा 3 घंटे में करती है। नाव द्वारा धारा के विपरीत समान दूरी तय करने में कितना समय लगता है?A. 4 hoursB. 5 hoursC. 6 hoursD. 8 hoursE. None of theseOption “B” is correct.Speed of the stream = 4 kmphSpeed of the downstream = 60/3 = 20 kmphSpeed of the boat in still water = 20 – 4 = 16 kmphSpeed of the upstream = 16 – 4 = 12 kmphRequired time = 60/12 = 5 hours 147. The ratio of the speed of boat in still water to the speed of the stream is 5:4. If the boat covers 72 km distance in upstream and downstream in 20 hours, then find the speed of boat in still water?शांत जल में नाव की गति से धारा की गति का अनुपात 5:4 है। यदि नाव धारा के प्रतिकूल और धारा के अनुकूल में 72 किमी की दूरी 20 घंटे में तय करती है, तो शांत जल में नाव की गति ज्ञात कीजिए?A. 20 kmphB. 16 kmphC. 24 kmph D. 25 kmphE. None of theseOption “A” is correct.Downstream speed=5x + 4x=9xUpstream speed=5x – 4x=xAccording to the question,72/9x + 72/x=20After solving this we have,x=4 kmphSpeed of the boat in still water=5 * 4=20 kmph 148. The ratio of the speed of the boat in still water to speed of stream on Thursday is 4:3. If the boat travels 140km along with the current in 4 hours and it will come back in?स्थिर पानी में नाव की गति से धारा की गति का अनुपात गुरुवार को 4: 3 है। यदि नाव 4 घंटे में धारा के साथ 140 किमी की दूरी तय करती है तो यह वापस _________ समय में आ जाएगी?A. 22 hoursB. 25 hoursC. 26 hoursD. 28 hoursE. None of theseOption “D” is correct.Downstream speed=140/4=35 kmphSpeed of the boat in still water=4xSpeed of the stream=3x4x + 3x=35X=5 kmphSpeed of the boat in still water=4x=20 kmphSpeed of the stream=3x=15 kmphUpstream speed=20 – 15=5 kmphTime=140/5=28 hours 149. The time taken by a boat to cover a distance of ‘D-36’ km upstream is half the time taken by it to cover a distance of ‘D’ km downstream. The ratio of the speed of downstream to that of upstream is 3:2. If the time taken to cover ‘D-22’ km upstream is 2 hours, then what is the speed of the current?‘D-36’ किमी धारा के प्रतिकूल की एक दूरी को तय करने में नाव के द्वारा लिया गया समय, ‘D’ किमी धारा के अनुकूल की एक दूरी को तय करने में इसके द्वारा लिए गए समय का आधा है। धारा के अनुकूल से धारा के प्रतिकूल की गति का अनुपात 3: 2 है। यदि ‘D-22’ किमी धारा-प्रतिकूल दूरी को तय करने में लिया गया समय 2 घंटे है, तो धारा की गति क्या है?A. 5 kmphB. 8 kmphC. 6 kmphD. 4 kmphE. None of theseOption “B” is correct.2K = 163K = 24 So, downstream speed = 24 kmphSpeed of current = (24 -16) / 2 = 4 kmph 150. The boat covers a certain distance along with stream in 12 hours and the same boat covers the same distance against stream in 20 hours. If the sum of the speed of downstream and upstream is 32 kmph, then find the speed of stream?नाव धारा के अनुकूल निश्चित दूरी को 12 घंटे में तय करती है और वही नाव धारा के प्रतिकूल उसी दूरी को 20 घंटे में तय करती है। यदि धारा के अनुकूल और धारा के प्रतिकूल की गति का योग 32 किमी प्रति घंटा है, तो धारा की गति को ज्ञात कीजिए?A. 2 kmphB. 4 kmphC. 5 kmph D. 6 kmphE. 10 kmphOption “B” is correct.Speed of the boat = xSpeed of stream = yx = 32/2 = 16 kmphd/(16 + y) = 12d/(16 – y) = 2012 * (16 + y) = 20 * (16 – y)48 + 3y = 80 – 5yy = 4 kmph