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A collection of books went on sale and 2/3 of these were sold Tk. 2.30 each. If none of the 36 remaining books that were sold?

Tk. 180

Tk. 135

Tk. 90

Tk. 60

ANSWER : 1

Descrption

দেয়া আছে, বিক্রিত বই &lt;math xmlns = &quot;http://www.w3.org/1998/Math/MathML&quot;&gt;&lt;mfrac&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mfrac&gt;&lt;/math&gt; অংশ 
সুতরাং অবিক্রিত বই = 1 - &lt;math xmlns = &quot;http://www.w3.org/1998/Math/MathML&quot;&gt;&lt;mfrac&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mfrac&gt;&lt;/math&gt; = &lt;math xmlns = &quot;http://www.w3.org/1998/Math/MathML&quot;&gt;&lt;mfrac&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mfrac&gt;&lt;/math&gt; অংশ 
প্রশ্নমতে, বইয়ের &lt;math xmlns = &quot;http://www.w3.org/1998/Math/MathML&quot;&gt;&lt;mfrac&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mfrac&gt;&lt;/math&gt;অংশ = 36 টি 
সুতরাং &lt;math xmlns = &quot;http://www.w3.org/1998/Math/MathML&quot;&gt;&lt;mfrac&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mfrac&gt;&lt;/math&gt; অংশ = &lt;math xmlns = &quot;http://www.w3.org/1998/Math/MathML&quot;&gt;&lt;mfrac&gt;&lt;mrow&gt;&lt;mn&gt;36&lt;/mn&gt;&lt;mo&gt;&amp;#xD7;&lt;/mo&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;mo&gt;&amp;#xD7;&lt;/mo&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mfrac&gt;&lt;/math&gt; = 72 টি 
সুতরাং 72 টি বই - এর বিক্রয়মূল্য (72&times;2.50) = 180 টাকা।

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