 
 <translate> If there are 600 people at the fair this year, the number going to the fair next year is 2 * 600 = 1200. The number of people at the fair this year and the ones going next year totals 1200 + 600 = 1800. The number of people who went to that fair last year was 200 less than those going next year, meaning there were 1200 - 200 = 1000 people at the fair last year. In the three years, the number of people at the fair will be 1800 of this and next year + 1000 of last year = 2800.
The final answer: 2800. <ibo> Ọ bụrụ na e nwere narị mmadụ isii n'ihe ngosi ahụ n'afọ a, ọnụ ọgụgụ ndị ga-aga ihe ngosi ahụ n'afọ ọzọ ga-abụ 2 * 600 = 1200. Onu ogugu ndi mmadu no n'ihe ngosi nke afo a na ndi ga-aga n'afọ ozo bu ngụkọta nke 1200 + 600 = 1800. Onu ogugu ndi mmadu gara ahia ahu n'afọ gara aga erughị 200 karịa ndị na-aga n'afọ ọzọ, nke pụtara na e nwere 1200 - 200 = 1000 ndị mmadụ na ahia ahụ n'afọ gara aga. N'ime afọ atọ a, ọnụọgụgụ ndị mmadụ ga-abịa emume a ga-abụ 1800 nke afọ a na afọ ọzọ + 1000 nke afọ gara aga = 2800. Azịza ikpeazụ ya bụ: 2800. 