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<html><body><h2 id="content-id-3154078296-2"><b>Trigonometry Questions Overview</b></h2><p>Trigonometry Questions have a good weightage in the Selection Post Grad English Exam and the type of question asked in Selection Post Grad 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 Trigonometry Questions.</p><h2 id="content-id-2957031846-3"><b>Question On Trigonometry </b></h2>A man on a lighthouse that stands 50 meters tall is observing a boat moving away from it. Over the course of 10 seconds, the angle of depression to the boat shifts from 60° to 30°. What is the approximate speed of the boat?
<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 : 38 Seconds </h3></div></div><h2 id="content-id-7256048913-4"><b> Trigonometry Questions Options</b></h2><ol><li><p>5.0 m/s</p>
</li><li><p>5.8 m/s</p>
</li><li><p>6.5 m/s</p>
</li><li><p>7.2 m/s</p>
</li></ol> <h2 id="content-id-9147280653-5"><b> Trigonometry Questions Solution</b></h2><p>The correct answer is<strong> option 2 </strong>i.e.<strong> 5.8 m/s.</strong></p>

<p><img loading="lazy" alt="" src="https://hranker.com/admin/assets/uploads/ckeditor/Pie%20Chart_24-08-2026_D32026_08_24_17_12_03.png" style="height:185px; width:183px"></p>

<p>Height of lighthouse = 50 m</p>

<p>In â&#150;³ABC</p>

<p>tan60 = <span class="math-tex">\(50\over BC\)</span></p>

<p>BC = <span class="math-tex">\(50\over tan60\)</span> = <span class="math-tex">\(50\overâ&#136;&#154;3\)</span></p>

<p>In â&#150;³ABD</p>

<p>tan 30 = <span class="math-tex">\(50\over BD\)</span></p>

<p>BD = <span class="math-tex">\(50\over tan 30\)</span> = 50√3</p>

<p>Distance travelled by boat = 50√3 − <span class="math-tex">\(50\overâ&#136;&#154;3\)</span> = <span class="math-tex">\(100\overâ&#136;&#154;3\)</span> m</p>

<p>Time = 10 seconds</p>

<p>Speed = <span class="math-tex">\({100\overâ&#136;&#154;3} \over 10\)</span> = <span class="math-tex">\(10\overâ&#136;&#154;3\)</span> m/s ≈ 5.8 m/s</p>
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8 10 23 73 300 1491 - Wrong Number Series Questions for Bank Po

2 5 17 71 365 2159 - Wrong Number Series Questions for Bank Po

The correct answer is option 2 i.e. 5. - Trigonometry Questions are asked in Selection Post Grad English exams and your question has been explained by experts like Neetu Mam.

A man on a lighthouse tha - Trigonometry Questions for Selection Post Grad English

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