 <translate> Given the stream of consciousness rationale, provide a reasonable question and answer. Rationale: Since average price of a pencil = 2
∴ Price of 75 pencils = 150
∴ Price of 30 pens = (570 – 150) = 360
∴ Average price of a pen = 420⁄60 = 14
 The question and answer: <yor> Níwọ̀n bó ti jẹ́ pé ohun tó wà lọ́kàn ẹ ló ń darí rẹ, béèrè ìbéèrè tó bọ́gbọ́n mu kó o sì dáhùn. Àlàyé: Níwọ̀n bí iye owó apapọ ti pẹ́ńsù kan = 2 <unk> Iye tí wọ́n ń san fún pẹ́ńsù márùndínlọ́gọ́rin = àádọ́jọ <unk> Iye owó ọ̀pá 30 = (570 <unk> 150) = 360 <unk> Iye tí wọ́n ń ta ọ̀bẹ̀ kan ní ìpíndọ́gba = 420⁄60 = 14 Ìbéèrè àti ìdáhùn: 