 <translate> Mrs. Fredrickson has 80 chickens where 1/4 are roosters and the rest are hens. Only three-fourths of those hens lay eggs. How many chickens does Mr. Fredrickson have that do not lay eggs? Think carefully first, then make a decision: <yor> Ìyáàfin Fredrickson ní adìyẹ méjìdínláàádọ́rin, èyí tí ìdá kan nínú mẹ́rin wọn jẹ́ akọ akọ, àwọn yòókù sì jẹ́ adìyẹ. Ìdá mẹ́ta péré nínú mẹ́rin àwọn adìyẹ wọ̀nyẹn ló ń pa ẹyin. Adìyẹ mélòó ni Ọ̀gbẹ́ni Fredrickson ní tí kì í bímọ? Kọ́kọ́ ronú dáadáa, kó o wá ṣèpinnu: 