 <translate> The question is: A teacher asked Adelaide, Ephraim, and Kolton to buy ducks and monitor their growth patterns and features for their science class. Adelaide bought twice the number of ducks that Ephraim bought, while Ephraim bought 45 fewer ducks than Kolton. If Adelaide bought 30 ducks, what's the average number of ducks the three bought?
Step-by-step reasoning process: If Adelaide bought 30 ducks, Ephraim bought 30 ducks / 2 = 15 ducks. Since Ephraim bought 45 fewer ducks than Kolton, Kolton bought 45 ducks + 15 ducks = 60 ducks. The total number of ducks the three bought is 60 ducks + 15 ducks + 30 ducks = 105 ducks. The average number of ducks each bought is 105 ducks / 3 people = 35 ducks / person.
 <yor> Ìbéèrè náà ni pé: Olùkọ́ kan ní kí Adelaide, Ephraim, àti Kolton lọ ra ìbẹ́dẹ̀, kí wọ́n sì wo bí wọ́n ṣe ń dàgbà àti bí wọ́n ṣe ń ṣe dáadáa tó, kí wọ́n lè fi kọ́ wọn lẹ́kọ̀ọ́ nípa sáyẹ́ǹsì. Iye ẹyẹ tí Adelaide rà fi ìlọ́po méjì iye tí Ephraim rà, nígbà tí Ephraim rà wọ́n kéré ní ìlọ́po márùndínláàádọ́ta ju ti Kolton lọ. Bí Adelaide bá ra ọ̀kẹ́ mẹ́ta ọbọ, mélòó ni iye tí àwọn mẹ́ta náà rà? Bí wọ́n ṣe máa ń ronú lé e lórí lẹ́ẹ̀kan-lẹ́ẹ̀kan: Bí Adelaide bá ra ọgbọ̀n ẹyẹ, Éfúráímù á ra ọgbọ̀n ẹyẹ / méjì = mẹ́ẹ̀ẹ́dógún. Níwọ̀n bí Éfúráímù ti ra ọ̀bọ mẹ́rìnlélógójì ó kéré sí ti Kolton, Kolton ra ọ̀bọ mẹ́rìnlélógójì ó lé mẹ́ẹ̀ẹ́dógún, èyí tó fi mọ́ ọ̀bọ mẹ́ẹ̀ẹ́dógún, tó fi mọ́ ọbọ ọgọ́ta. Àpapọ̀ iye ìkòkò tí àwọn mẹ́tẹ̀ẹ̀ta rà jẹ́ ìkòkò 60 + ìkòkò 15 + ìkòkò 30 = ìkòkò 105. Iye àdá tí ẹnì kọ̀ọ̀kan wọn rà jẹ́ àdá mẹ́ẹ̀ẹ́dógún [105] / ènìyàn mẹ́ta = àdá márùndínlógójì [35]. 