 
<translate> Kwuo otú e si atụgharị uche n'isiokwu ahụ, kọwaa nke ọ bụla n'ime ha, ma kwuo ihe bụ azịza ya. N'abalị ikpeazụ ebe ahụ a na-agba ọsọ gbapụrụ agbapụ meghere, mmadụ 40 bịara ịgba ọsọ gbapụrụ agbapụ nke ikpeazụ. Mgbe mmadụ 40 ahụ nile na-agba ọsọ n'otu oge, wiil ole ka e nwere n'ala? <eng> Give the step-by-step reasoning process and then the final answer. On the last night that roller skate rink was open, 40 people showed up to roller skate one last time. When all 40 people skated at one time, how many wheels were on the floor? 