 <translate> Use some thinking to answer the following question. If sushi rows 27 km upstream and 81 km down steam taking 9 hours each, then the speed of the stream
Options:
(A) 12 kmph
(B) 13 kmph
(C) 22 kmph
(D) 20 kmph
(E) 15 kmph <yor> Ronú díẹ̀ kó o tó dáhùn ìbéèrè tó tẹ̀ lé e yìí. Ti sushi ba rin 27 km si odo ati 81 km si odo ti o gba wakati mẹsan kọọkan, lẹhinna iyara ti odo naa Àwọn àyè: (A) 12 kmph (B) 13 kìlómítà ní wákàtí kan (C) 22 kmph (D) 20 kmph (E) 15 kmph 