 
<translate> Ajụjụ: Marky nwere ụlọ ahịa na-ere ngwá ọrụ kọmputa. N'ọnwa a, ọkara ahịa ha bụ òké ndị na-enweghị eriri, otu ụzọ n'ụzọ anọ bụ òké ndị na-ahụ anya, ndị fọdụrụ bụ òké ndị na-agba ọsọ. Ọ bụrụ na ụlọ ahịa Marky rere òké 80 n'ozuzu, ole n'ime ha bụ òké bọl? Buru ụzọ chee echiche nke ọma, kpebizie ihe ị ga-eme: <eng> Question: Marky owns a computer accessory shop. For this month, half of their sales are wireless mice, one-fourth are optical mice, and the rest are trackball mice. If Marky's shop was able to sell a total of 80 mice, how many of them are trackball mice? Think carefully first, then make a decision: 