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<html><body><h2 id="content-id-6420791358-2"><b>Permutation And Combination Questions Overview</b></h2><p>Permutation And Combination Questions have a good weightage in the Ssc Chsl Exam and the type of question asked in Ssc Chsl 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 Permutation And Combination Questions.</p><h2 id="content-id-3074196285-3"><b>Question On Permutation And Combination </b></h2>There are 5 red, 6 black and 5 blue balls in a bag. Out of these balls, four balls are picked at random from the bag. Then, what is the probability that one is red, two are black and one is blue ball? 
<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 : Moderate </h3></div><div class="col-sm-6 show--dificulty--bar" style="display:inline-flex;"><h3 style="font-size:12px !important;"> Average Time : 39 Seconds </h3></div></div><h2 id="content-id-5189632704-4"><b> Permutation And Combination Questions Options</b></h2><ol><li><p>75/362</p>
</li><li><p>75/364</p>
</li><li><p>71/362</p>
</li><li><p>70/363</p>
</li><li><p>5/26</p>
</li></ol> <h2 id="content-id-6820457931-5"><b> Permutation And Combination Questions Solution</b></h2><p>The correct answer is <strong>option 2 </strong>i.e. <strong>75/364.</strong></p>

<p>Ways to select 4 balls out of 16 balls = <sup>16</sup>C<sub>4</sub></p>

<p>Ways to select one red balls = <sup>5</sup>C<sub>1</sub></p>

<p>Ways to select two black balls = <sup>6</sup>C<sub>2</sub></p>

<p>Ways to select one blue balls = <sup>5</sup>C<sub>1</sub></p>

<p>∴ Required probability = (<sup>5</sup>c<sub>1 </sub>× <sup>6</sup>c<sub>2 </sub>× <sup>5</sup>c<sub>1</sub>)/(<sup>16</sup>c<sub>4</sub>) = 75/364</p>
<h2 id="content-id-1582097643-6"><b> Permutation And Combination Questions Tips and Tricks</b></h2><img loading="lazy" src="https://study.kdcampus.live/questions-blog-pdf/Permutation_And_Combination_Questions_Tips_and_Tricks.png" alt="Permutation And Combination Questions Tips and Tricks" height="260" width="480"><ol><li>Try to solve Permutation And Combination Questions without taking any help from the solutions.</li><li>Permutation And Combination 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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