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<html><body><h2 id="content-id-5048397216-2"><b>Boats And Stream Questions Overview</b></h2><p>Boats And Stream Questions have a good weightage in the Ssc Cgl Exam and the type of question asked in Ssc Cgl exam is similar to the question mentioned below. It has been solved and explained by KD Live Experts under the guidance of Neetu Mam and they have tried to elaborate the concept used in Boats And Stream Questions.</p><h2 id="content-id-3246719805-3"><b>Question On Boats And Stream </b></h2>A boat covers a distance of D km downstream in t hours. The same boat takes (t + 4) hours to cover the same distance D km upstream. The speed of the boat in still water is x km/h and the speed of the stream is y km/h. The ratio of the speed of the boat in still water to the speed of the stream is 5 : 1. If the boat travels (D - 40) km downstream, it takes 3 hours. Find the value of D.
<div class="row show--dificulty--bar" style="margin-top:8px;"><div class="col-sm-6 show--dificulty--bar" style="display:inline-flex !important;border-right:0.1px solid #eee;"><h3 style="font-size:12px !important;">Difficulty : Easy </h3></div><div class="col-sm-6 show--dificulty--bar" style="display:inline-flex;"><h3 style="font-size:12px !important;"> Average Time : 50 Seconds </h3></div></div><h2 id="content-id-4019657832-4"><b> Boats And Stream Questions Options</b></h2><ol><li><p>72 km</p>
</li><li><p>36 km</p>
</li><li><p>64 km</p>
</li><li><p>48 km</p>
</li><li><p>56 km</p>
</li></ol> <h2 id="content-id-0619824357-5"><b> Boats And Stream Questions Solution</b></h2><p>The correct answer is <strong>option 3</strong> i.e. <strong>64 km</strong>.</p>

<p>Speed of boat : speed of stream = 5 : 1</p>

<p>Let</p>

<p>Speed of boat in still water = x km/h</p>

<p>Speed of stream = x/5 km/h</p>

<p>Downstream speed = x + x/5 = 6x/5</p>

<p>Upstream speed = x − x/5 = 4x/5</p>

<p>Time </p>

<p>Downstream:</p>

<p>t = D ÷ (6x/5) = 5D / 6x................1</p>

<p>Upstream:</p>

<p>t + 4 = D ÷ (4x/5) = 5D / 4x...............2</p>

<p>Subtract eq (2) - eq (1)</p>

<p>5D/4x − 5D/6x = 4</p>

<p>⇒ (15D − 10D) / 12x = 4</p>

<p>⇒ 5D / 12x = 4</p>

<p>⇒ 5D = 48x</p>

<p>⇒ D = 48x / 5</p>

<p>(D − 40) km downstream in 3 hours</p>

<p>Downstream speed = 6x/5</p>

<p>Distance = speed × time</p>

<p>D − 40 = (6x/5) × 3</p>

<p>⇒ D − 40 = 18x/5</p>

<p>⇒ D = 18x/5 + 40</p>

<p>⇒ 48x/5 = 18x/5 + 40</p>

<p>⇒ 30x/5 = 40</p>

<p>⇒ 6x = 40</p>

<p>⇒ x = 20/3</p>

<p>So,</p>

<p>D = 48x/5 = 48 × (20/3) ÷ 5</p>

<p>D = 64 km</p>
<h2 id="content-id-1902546738-6"><b> Boats And Stream Questions Tips and Tricks</b></h2><img loading="lazy" src="https://study.kdcampus.live/questions-blog-pdf/Boats_And_Stream_Questions_Tips_and_Tricks.png" alt="Boats And Stream Questions Tips and Tricks" height="260" width="480"><ol><li>Try to solve Boats And Stream Questions without taking any help from the solutions.</li><li>Boats And Stream Questions require proper usage of concept so firstly read the question thoroughly and then use the right concept. </li><li>In case you're not able to solve the question in less than 30 seconds in the exam then you should skip the question and move to the next question.</li></ol><h3><b>Daily Current Affairs </b></h3><img loading="lazy" src="https://study.kdcampus.live/questions-blog-pdf/Daily_Current_Affairs.png" alt="Daily Current Affairs" height="260" width="480"><p>KD Live is providing Current Affairs on a daily basis for SSC and a current affairs quiz too for the practice. 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The correct answer is option 3 i.e. 64 k - Boats And Stream Questions are asked in Ssc Cgl exams and your question has been explained by experts like Neetu Mam.

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