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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 seating in the stadium is 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?

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 seating in the stadium is 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? Correct Answer 3/20

ধরি, total number of seats = x তাহলে lower deck এ seat = x×14 = x4 so unsold seat in lower deck = 15×x4 = x20 এখন, x×23 seats in whole stadium বিক্রি হয়েছিল, তাহলে unsold = (x - 23x)  =  x3 তাহলে ভগ্নাংশটি হবে = x20÷x3 = x20×3x = 320

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