 <translate> Afọ iri site ugbu a gaa n'ihu, nwa nke okenye ga-adị afọ 20 + 10 = afọ 30. Ọ bụrụ na nwa nke okenye dị afọ 20 ugbu a, nwa nke abụọ a mụrụ dị afọ 20 - 5 = afọ 15, afọ 5 dị obere karịa nke ọkpara. Nwa nke abụọ a mụrụ ga-enwe afọ iri na ise + 10 = afọ iri abụọ na ise afọ iri site ugbu a. Ngụkọta afọ ndụ nke onye nke mbụ na nke abụọ a mụrụ n'ime afọ 10 site ugbu a gaa n'ihu ga-abụ 25 + 30 = 55. Onye nke atọ a mụrụ nke dị afọ ise n'afọ karịa nke abụọ a mụrụ bụ afọ 15 - 5 = afọ 10. Afọ nwanne nke atọ ga-abụ afọ iri site ugbu a gaa n'ihu ga-abụ afọ 10 + 10 = afọ 20. Afọ ndụ ụmụnne atọ ahụ ga-agbakọta afọ iri site ugbu a gaa n'ihu ga-abụ afọ 55 + 20 = afọ 75. Ya mere, azịza ya bụ 75. <hau> Shekaru goma daga yanzu, babba yaro zai zama 20 + 10 = 30 shekara. Idan ɗan fari yana da shekaru 20 a yanzu, na biyu da aka haifa yana da shekaru 20 - 5 = 15 shekaru, shekaru 5 ƙarami fiye da ɗan fari. Na biyu - haifa zai zama 15 + 10 = 25 shekara goma shekaru daga yanzu. Jimlar shekarun na farko da na biyu da aka haifa shekaru 10 daga yanzu zai zama 25 + 30 = 55. Na uku - wanda aka haife shi wanda yake shekaru biyar ya fi ƙarami fiye da na biyu da aka haife shi yana da shekaru 15 - 5 = 10. Shekaru goma daga yanzu ɗan'uwa na uku zai kasance shekaru 10 + 10 = 20. Jimlar shekarun 'yan'uwa uku shekaru goma daga yanzu zai zama 55 + 20 = shekaru 75. Amsar ita ce 75. 