 
 <translate> Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Arthur is 2 years older than Susan, so he is 15 + 2 = 17 years old. Bob is 11 years old, so Tom is 11 - 3 = 8 years old. So in total these four family members have 11 + 15 + 17 + 8 = 51 years.
 The question and answer: <ibo> N'iburu ezi uche dị na ya, nye ajụjụ na azịza ezi uche dị na ya. Otú e si atụgharị uche: Arthur ji afọ abụọ tọọ Susan, n'ihi ya, ọ dị afọ iri na ise tinyere abụọ, ya bụ, afọ iri na asaa. Bob dị afọ iri na otu, yabụ Tom dị afọ iri na otu - atọ = afọ asatọ. Ya mere, n'ozuzu, ndị òtù ezinụlọ anọ a nwere afọ 11 + 15 + 17 + 8 = afọ 51.  Ajụjụ na azịza: 