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?

Mutual Trust Bank Ltd Mutual Trust Bank ltd - Probationary Officer - 2016 গণিত ভগ্নাংশ (Fraction) 2016