October 21st Teaser Solution

Brain Teasers: A brain teaser is a form of puzzle that requires thought to solve. It often requires thinking in unconventional ways with given constraints in mind; sometimes it also involves lateral thinking. Logic puzzles and riddles are specific types of brain teasers. Today's can be found below....

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The Teaser

The local library decided to hand out some of its old books to its 1400 borrowers. To each of the female borrowers they gave 6 books and to each male borrower they gave 4 books. If only half of the females in town and three quarters of the males in town accepted the books how many books were given away?


The Solution

4200 books. Since each female was offered 6 books but only half of them accepted, on an average, each of them got 3 books. Also, since each male was offered 4 books and three quarters accepted, again an average male got 3 books. Since females and males got the same number of books per person, it does not matter how many females there actually are. So, total books given away = 1400 x 3 = 4200