 <translate> Student: 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) 1/7
(C) 1/5
(D) 1/9
(E) 1/2.
Another student: Let's say, hmmm...
 <yor> Ọmọ iléèwé: Ìwé mẹ́wàá ni a gbé sí orí àtẹ̀wé kan. Ṣé ó ṣeé ṣe kí ìwé méjì wà pa pọ̀ títí láé? Àwọn àyè: (A) 1/6 (B) 1/7 (C) 1/5 (D) 1/9 (E) Ìdajì. Ọmọ iléèwé mìíràn: Ẹ jẹ́ ká sọ pé, hmmm... 