 <translate> Q: The speed of a boat in still water is 40kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?
Options:
(A) 40, 68 kmph
(B) 40, 30 kmph
(C) 90, 60 kmph
(D) 40, 60 kmph
(E) 60, 20 kmph Let's give some random thoughts before answering. <yor> Ìbéèrè: Ìyára ọkọ̀ ojú omi nínú omi tó rọ̀ jẹ́ 40kmph àti iyara ìgbì omi jẹ́ 20kmph. Ṣé o ti rí iyara tó wà ní ìsàlẹ̀ àti òkè odò? Àwọn àyè: (A) 40, 68 kmph (B) 40, 30 kmph (C) 90, 60 kmph (D) 40, 60 kmph (E) 60, 20 kmph Ẹ jẹ́ ká sọ̀rọ̀ díẹ̀ ká tó dáhùn. 