 
<translate> Ajụjụ bụ: Meri na-agụta nnụnụ ndị a na-akpọ minnows n'ọdọ mmiri ahụ. Pasent 40 nke ụmụ nnụnụ ndị ahụ nwere afọ na-acha ọbara ọbara, pasent 30 nwere afọ na-acha akwụkwọ ndụ akwụkwọ ndụ, ndị fọdụrụnụ nwekwara afọ na-acha ọcha. Ọ bụrụ na ụmụ nnụnụ iri abụọ nwere afọ na-acha ọbara ọbara, ụmụ nnụnụ ole nwere afọ na-acha ọcha? Ihe ị ga-eburu n'uche: Nke mbụ, chọpụta ọnụ ọgụgụ ụmụ nnụnụ ndị ahụ site n'ịkewa ọnụ ọgụgụ ụmụ nnụnụ ndị ahụ na-acha uhie uhie site na pasent nke ụmụ nnụnụ ndị ahụ na-acha uhie uhie: 20 ụmụ nnụnụ / 40% = 50 ụmụ nnụnụ. Mgbe ahụ, wepụzie pasent nke obere nnụnụ na-acha uhie uhie na nke na-acha akwụkwọ ndụ akwụkwọ ndụ iji chọpụta pasent nke obere nnụnụ na-acha ọcha: 100% - 40% - 30% = 30%. Mgbe ahụ, mụbaa ọnụ ọgụgụ nile nke ụmụ nnụnụ ndị a na pasent nke ndị nwere afọ ọcha: 30% * 50 ụmụ nnụnụ = 15 ụmụ nnụnụ. <eng> The question is: Mary is counting the number of minnows in the pond. 40% of the minnows have red bellies, 30% have green bellies and the rest have white bellies. If 20 minnows have red bellies, how many minnows have white bellies?
Stream of consciousness: First find the total number of minnows by dividing the number of red minnows by the percentage of minnows that are red: 20 minnows / 40% = 50 minnows. Then subtract the percentages of red - and green - bellied minnows to find the percentage of white - bellied minnows: 100% - 40% - 30% = 30%. Then multiply the total number of minnows by the percentage that have white bellies: 30% * 50 minnows = 15 minnows.
 