 
<translate> An sanya littattafai 10 a bazuwar a cikin shiryayye. Da yiwuwar cewa biyu littattafai za su kasance kullum tare ne Zaɓuɓɓuka: (A) 1/6 (B) 1/9 (C) 1/5 (D) 1/6 (E) 1/3 Na yarda. Bari mu yi tunani. Wasu tunani bazuwar farko: <eng> 10 books are placed at random in a shelf. The probability that a pair of books will always be together is
Options:
(A) 1/6
(B) 1/9
(C) 1/5
(D) 1/6
(E) 1/3 OK. Let's think. Some random thoughts first: 