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<html><body><h2 id="content-id-1573240896-2"><b>Time And Work Questions Overview</b></h2><p>Time And Work 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 Time And Work Questions.</p><h2 id="content-id-4932605871-3"><b>Question On Time And Work </b></h2>A alone can do a work in 30 days, B alone in 40 days. They start together, but A leaves a few days before the completion. Total work is completed in 18 days. In how many days did A work?
<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 : 40 Seconds </h3></div></div><h2 id="content-id-5760243819-4"><b> Time And Work Questions Options</b></h2><ol><li><p>13 days</p>
</li><li><p>14.5 days</p>
</li><li><p>15 days</p>
</li><li><p>16.5 days</p>
</li></ol> <h2 id="content-id-5169304872-5"><b> Time And Work Questions Solution</b></h2><p>The correct answer is<strong> option 4</strong> i.e. <strong>16.5 days </strong>.</p>

<p>Let the total work be the LCM of 30 and 40 = 120 units.</p>

<p>Efficiency of A = <span class="math-tex">\(\frac{120}{30}=4\)</span> units/day.</p>

<p>Efficiency of B = <span class="math-tex">\(\frac{120}{40}=3\)</span> units/day.</p>

<p>Let A worked for x days.</p>

<p>Since B works throughout the 18 days, B completes: <span class="math-tex">\(3 \times 18 = 54\)</span> units.</p>

<p>Therefore, the work completed by A is: <span class="math-tex">\(120 - 54 = 66\)</span> units.</p>

<p>Hence, the number of days for which A worked is: <span class="math-tex">\[ x=\frac{66}{4}=16.5 \]</span> days</p>
<h2 id="content-id-6458021793-6"><b> Time And Work Questions Tips and Tricks</b></h2><img loading="lazy" src="https://study.kdcampus.live/questions-blog-pdf/Time_And_Work_Questions_Tips_and_Tricks.png" alt="Time And Work Questions Tips and Tricks" height="260" width="480"><ol><li>Try to solve Time And Work Questions without taking any help from the solutions.</li><li>Time And Work 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 4 i.e. 16. - Time And Work Questions are asked in Selection Post 10th English exams and your question has been explained by experts like Neetu Mam.

A alone can do a work in - Time And Work Questions for Selection Post 10th English

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