 
 <translate> Q: The average of 13 numbers is 58. Average of the first 7 of them is 57 and that of the last 7 is 61. Find the 8th number?
Options:
(A) 72
(B) 83
(C) 45
(D) 53
(E) 64 Let's give some random thoughts before answering. <hau> Tambaya: Matsakaicin lambobi 13 shine 58. Matsakaicin na farko 7 daga cikinsu shine 57 kuma na karshe 7 shine 61. Ka sami lamba ta takwas? Zaɓuɓɓuka: (A) 72 (B) 83 (C) 45 (D) 53 (E) 64 Bari mu ba da wasu tunani na bazuwar kafin amsawa. 