 <translate> Dana has 15 more pencils than Jayden who has 20, so Dana has 20 + 15 = 35 pencils. Jayden has 20 pencils which is twice as much as Marcus's so Marcus has 20 / 2 = 10 pencils. Dana has 35 - 10 = 25 more pencils than Marcus.
The final answer: 25. <yor> Dana ní 15 ọ̀dà pencil ju Jayden tó ní 20, nítorí náà Dana ní 20 + 15 = 35 ọ̀dà pencil. Jayden ní 20 pencil èyí tó jẹ́ ìlọ́po méjì iye ti Marcus ní, nítorí náà Marcus ní 20 / 2 = 10 pencil. Dana ní kálàmù márùndínlógójì - mẹ́wàá = kálàmù mẹ́ẹ̀ẹ́dọ́gbọ̀n ju Marcus lọ. Ìdáhùn tí wọ́n fún un níkẹyìn ni pé: 25. 