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<html><body><h2 id="content-id-3502491876-2"><b>Mensuration 3D Questions Overview</b></h2><p>Mensuration 3D 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 Mensuration 3D Questions.</p><h2 id="content-id-0318729564-3"><b>Question On Mensuration 3D </b></h2>When the radius of a sphere is increased by 7 cm, its surface area increases by 4312 cm2. What is the volume (in cm3) of the original sphere? (Take π = 22/7)
<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 : 34 Seconds </h3></div></div><h2 id="content-id-8297506143-4"><b> Mensuration 3D Questions Options</b></h2><ol><li><p>37004 <span class="math-tex">\(cm^3\)</span></p>
</li><li><p>32808 <span class="math-tex">\(cm^3\)</span></p>
</li><li><p>38808 <span class="math-tex">\(cm^3\)</span></p>
</li><li><p>32440 <span class="math-tex">\(cm^3\)</span></p>
</li></ol> <h2 id="content-id-8413290765-5"><b> Mensuration 3D Questions Solution</b></h2><p>The correct answer is <strong>option 3</strong> i.e <strong>38808 <span class="math-tex">\(cm^3\)</span>.</strong></p>

<p>Surface area of a sphere = 4πr<sup>2</sup></p>

<p>Increase in surface area = 4π[(r + 7)<sup>2</sup> − r<sup>2</sup>]</p>

<p>⇒ 4312 = 4 × <span class="math-tex">\(22\over7\)</span> × [(r + 7)<sup>2</sup> − r<sup>2</sup>]</p>

<p>⇒ 539 × <span class="math-tex">\(7\over11\)</span> = 14r + 49</p>

<p>⇒ 49 × 7 = 14r + 49</p>

<p>⇒ 14r = 294</p>

<p>⇒ r = 21 cm</p>

<p>Volume of sphere = <span class="math-tex">\(4\over3\)</span> πr<sup>3</sup></p>

<p>⇒ <span class="math-tex">\(4\over3\)</span> × <span class="math-tex">\(22\over7\)</span> × (21)<sup>3</sup> = 38808 cm<sup>3</sup></p>
<h2 id="content-id-6097413582-6"><b> Mensuration 3D Questions Tips and Tricks</b></h2><img loading="lazy" src="https://study.kdcampus.live/questions-blog-pdf/Mensuration_3D_Questions_Tips_and_Tricks.png" alt="Mensuration 3D Questions Tips and Tricks" height="260" width="480"><ol><li>Try to solve Mensuration 3D Questions without taking any help from the solutions.</li><li>Mensuration 3D 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 38808 - Mensuration 3D Questions are asked in Ssc Chsl exams and your question has been explained by experts like Neetu Mam.

 Mensuration 3D Questions Tips and Tricks

When the radius of a sphe - Mensuration 3D Questions for Ssc Chsl

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