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Question
At a college football game, 4/5 of the seats in the lower deck of the stadium were sold. If one-fourth of all the seats in the stadium were located in the lower deck, and if 2/3 of all the seats in the stadium were sold, what fraction of the unsold seats in the stadium were in the lower deck?
3/20
1/6
1/3
7/15
ANSWER : 1
Descrption
<p>ধরা যাক, stadium - এ total seat সংখ্যা x টি<br /> so lower deck - এ seat সংখ্যা <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mi>x</mi><mn>4</mn></mfrac></math> টি<br /> so lower deck - এর অবিক্রিত seat সংখ্যা <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>1</mn><mn>5</mn></mfrac><mo>&#xD7;</mo><mfrac><mi>x</mi><mn>4</mn></mfrac><mo> = </mo><mfrac><mi>x</mi><mn>20</mn></mfrac></math> টি<br /> পুরো Stadium এর বিক্রীত seat <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>2</mn><mi>x</mi></mrow><mn>3</mn></mfrac></math> টি হলে অবক্রিত seat সংখ্যা <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mi>x</mi><mn>20</mn></mfrac></math> টি<br /> so stadium - এর <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mi>x</mi><mn>3</mn></mfrac></math> টি অবক্রিত seat - এর মধ্যে lower deck <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mi>x</mi><mn>20</mn></mfrac></math> টি<br /> সুতরাং stadium এর 1 টি অবক্রিত seat এর মধ্যে lower deck = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mi>x</mi><mn>20</mn></mfrac><mo>&#xD7;</mo><mfrac><mn>3</mn><mi>x</mi></mfrac><mo> = </mo><mfrac><mn>3</mn><mn>20</mn></mfrac></math> টি</p>
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