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<html><body><h2 id="content-id-2453769108-2"><b>Percentage Questions Overview</b></h2><p>Percentage Questions have a good weightage in the Selection Post 10th English Exam and the type of question asked in Selection Post 10th English 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 Percentage Questions.</p><h2 id="content-id-1387206495-3"><b>Question On Percentage </b></h2>A solution contains 30% of substance S and 70% of substance T by weight. If the solution has a total mass of 1200 grams, and 300 grams of substance S are added to it, what is the new percentage concentration of substance S in the solution?
<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 : 39 Seconds </h3></div></div><h2 id="content-id-8025693417-4"><b> Percentage Questions Options</b></h2><ol><li><p>40%</p>
</li><li><p>44%</p>
</li><li><p>33%</p>
</li><li><p>45%</p>
</li></ol> <h2 id="content-id-2196570483-5"><b> Percentage Questions Solution</b></h2><p>The correct answer is <strong>option 2</strong> i.e. <strong>44%</strong> . </p>

<p>Total mass of the solution = 1200 grams.</p>

<p>Initial quantity of substance S =  (30/100) × 1200 = 360 grams</p>

<p>300 grams of substance S is added.</p>

<p>New quantity of substance S =  360 + 300 = 660 grams</p>

<p>New total mass of the solution = 1200 + 300 = 1500 grams</p>

<p>Therefore, the new percentage concentration of substance S = <span class="math-tex">\[ \frac{660}{1500}\times100=44\% \]</span></p>
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Consider the number - - Number System Questions for Selection Post 12th English

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The correct answer is option 2 i.e. 44% - Percentage Questions are asked in Selection Post 10th English exams and your question has been explained by experts like Neetu Mam.

A solution contains 30 - Percentage Questions for Selection Post 10th English

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