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<html><body><h2 id="content-id-0594721683-2"><b>Mixed Graph Questions Overview</b></h2><p>Mixed Graph Questions have a good weightage in the Rbi Assistant Exam and the type of question asked in Rbi Assistant 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 Mixed Graph Questions.</p><h2 id="content-id-9581072346-3"><b> Comprehension On Mixed Graph Questions</b></h2>Directions :The data represents the distribution of residents across 5 different towers (A, B, C, D, and E) in a residential complex. 

 



 

Notes : Total Number of Residents in D tower is 960.
<h2 id="content-id-1987264305-4"><b>Question On Mixed Graph </b></h2>The average age of the 1200 residents of Tower A is 30 years. A group of X residents with an average age of 45 years leaves Tower A and is replaced by the same number of residents with an average age of 25 years. If the new average age of Tower A becomes 28.5 years, find the value of X.
<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 : 52 Seconds </h3></div></div><h2 id="content-id-1439078265-5"><b> Mixed Graph Questions Options</b></h2><ol><li><p>50</p>
</li><li><p>70</p>
</li><li><p>90</p>
</li><li><p>60</p>
</li><li><p>80</p>
</li></ol> <h2 id="content-id-3724586019-6"><b> Mixed Graph Questions Solution</b></h2><p>The correct answer is <strong>option 3</strong> i.e. <strong>90</strong></p>

<table cellspacing="0" class="MsoTableGrid" style="border-collapse:collapse; border:medium; width:350px">
	<tbody>
		<tr>
			<td style="border-bottom:1px solid black; border-left:1px solid black; border-right:1px solid black; border-top:1px solid black; vertical-align:top; width:49px">
			<p style="text-align:justify">Tower</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:1px solid black; vertical-align:top; width:130px">
			<p style="text-align:justify">Total Residents</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:1px solid black; vertical-align:top; width:57px">
			<p style="text-align:justify">Male %</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:1px solid black; vertical-align:top; width:123px">
			<p style="text-align:justify">Males</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:1px solid black; vertical-align:top; width:132px">
			<p style="text-align:justify">Females</p>
			</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; border-left:1px solid black; border-right:1px solid black; border-top:none; vertical-align:top; width:49px">
			<p style="text-align:justify">A</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:130px">
			<p style="text-align:justify">15% of 8000 = 1200</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:57px">
			<p style="text-align:justify">40%</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:123px">
			<p style="text-align:justify">40% of 1200 = 480</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:132px">
			<p style="text-align:justify">1200 − 480 = 720</p>
			</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; border-left:1px solid black; border-right:1px solid black; border-top:none; vertical-align:top; width:49px">
			<p style="text-align:justify">B</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:130px">
			<p style="text-align:justify">25% of 8000  = 2000</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:57px">
			<p style="text-align:justify">60%</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:123px">
			<p style="text-align:justify">60% of 2000  = 1200</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:132px">
			<p style="text-align:justify">2000 − 1200 = 800</p>
			</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; border-left:1px solid black; border-right:1px solid black; border-top:none; vertical-align:top; width:49px">
			<p style="text-align:justify">C</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:130px">
			<p style="text-align:justify">20% of 8000  = 1600</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:57px">
			<p style="text-align:justify">45%</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:123px">
			<p style="text-align:justify">45% of 1600 = 720</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:132px">
			<p style="text-align:justify">1600 − 720 = 880</p>
			</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; border-left:1px solid black; border-right:1px solid black; border-top:none; vertical-align:top; width:49px">
			<p style="text-align:justify">D</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:130px">
			<p style="text-align:justify">12% of 8000  = 960</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:57px">
			<p style="text-align:justify">75%</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:123px">
			<p style="text-align:justify">75% of 960  = 720</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:132px">
			<p style="text-align:justify">960 − 720 = 240</p>
			</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; border-left:1px solid black; border-right:1px solid black; border-top:none; vertical-align:top; width:49px">
			<p style="text-align:justify">E</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:130px">
			<p style="text-align:justify">28% of 8000 = 2240</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:57px">
			<p style="text-align:justify">55%</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:123px">
			<p style="text-align:justify">55% of 2240  = 1232</p>
			</td>
			<td style="border-bottom:1px solid black; border-left:none; border-right:1px solid black; border-top:none; vertical-align:top; width:132px">
			<p style="text-align:justify">2240 − 1232 = 1008</p>
			</td>
		</tr>
	</tbody>
</table>

<p>Initial total age = 1200 × 30 = 36000</p>

<p>New total age = 1200 × 28.5 = 34200</p>

<p>Decrease in total age = 36000 − 34200 = 1800</p>

<p>Decrease caused by each replacement = 45 − 25 = 20</p>

<p>X = 1800 / 20 = 90</p>
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The correct answer is option 3 i.e. 90  - Mixed Graph Questions are asked in Rbi Assistant exams and your question has been explained by experts like Neetu Mam.

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