 <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. <yor> Ìbéèrè: Ìpíndọ́gba àwọn nọ́ńbà mẹ́tàlá jẹ́ 58. Ìpíndọ́gba àwọn méje àkọ́kọ́ nínú wọn jẹ́ 57 àti ti àwọn méje tó kẹ́yìn jẹ́ 61. Ṣé o ti rí nọ́ńbà kẹjọ? Àwọn àyè: (A) 72 (B) 83 (C) 45 (D) 53 (E) 64 Ẹ jẹ́ ká kọ́kọ́ gbé àwọn kókó kan yẹ̀ wò ká tó dáhùn. 