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<html><body><h2 id="content-id-4587021396-2"><b>Permutation And Combination Questions Overview</b></h2><p>Permutation And Combination Questions have a good weightage in the Rrb Clerk 2023 Exam and the type of question asked in Rrb Clerk 2023 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-9706413582-3"><b>Question On Permutation And Combination </b></h2>The number of ways of arranging 10 books on a shelf such that two particular books are always together is
<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 : 33 Seconds </h3></div></div><h2 id="content-id-0894762135-4"><b> Permutation And Combination Questions Options</b></h2><ol><li><p>9! × 2!</p>
</li><li><p>9!</p>
</li><li><p>8!</p>
</li><li><p>8! × 7!</p>
</li><li><p>7!</p>
</li></ol> <h2 id="content-id-4607831529-5"><b> Permutation And Combination Questions Solution</b></h2><p>The correct answer is <strong>Option 1</strong> i.e. <strong>9! × 2!</strong></p>

<p>When two books are to be together, we assume those two books as 1 unit.</p>

<p>In this one unit, there are 9 books that can be arranged in 9! ways. But these two books can be arranged internally in 2! ways</p>

<p>Thus, the Required number of arrangements = 9! 2!</p>
<h2 id="content-id-4816907325-6"><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 Banking and a current affairs quiz too for the practice. 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The number of ways of arr - Permutation And Combination Questions for Rrb Clerk 2023

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The correct answer is Option 1 i.e. 9!  - Permutation And Combination Questions are asked in Rrb Clerk 2023 exams and your question has been explained by experts like Neetu Mam.

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The number of ways of arr - Permutation And Combination Questions for Rrb Clerk 2023

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