 <translate> Let X be the price of a child ticket. So the price of an adult ticket is X * 2. We know from the problem that 400 * X * 2 + 200 * X = 16,000. After multiplying, we have 800 * X + 200 * X = 16,000. Combining like terms, we have 1000 * X = 16,000. Dividing both sides by 1000, we have X = $16. The price of an adult ticket is $16 * 2 = $32. The answer: 32. <yor> Jẹ́ kí X jẹ́ iye tí wọ́n fi ra tikẹ́ẹ̀tì ọmọdé. Nítorí náà, iye tí wọ́n máa ń ta tikẹ́ẹ̀tì àgbàlagbà ni X * 2. A mọ lati inu iṣoro naa pe 400 * X * 2 + 200 * X = 16,000. Lẹ́yìn tí a bá ti ṣe ìlọ́po, a ní 800 * X + 200 * X = 16,000. Tá a bá pa àwọn ọ̀rọ̀ tó jọra pọ̀, a máa rí 1000 * X = 16,000. Tí a bá pín àwọn ìhà méjèèjì ní ẹgbẹ̀rún, a ó rí i pé X = $16. Owó tí wọ́n máa ń san fún àgbàlagbà kan jẹ́ $16 * 2 = $32. Ìdáhùn náà ni: 32. 