 
 <translate> If the fan works for 10 minutes each day, in a week with 7 days, it will have worked for 10 * 7 = 70 minutes. Since a minute has 60 seconds, the total time in seconds that the fan will have worked in one week is 70 * 60 = 4200 seconds. Since the fan can create an airflow of 10 liters per second, in 4200 seconds, it will create an airflow of 4200 * 10 = 42000 liters. <ibo> Ọ bụrụ na onye ahụ na-enye ọkụ na-arụ ọrụ nkeji iri kwa ụbọchị, n'ime izu nwere ụbọchị asaa, ọ ga-arụ ọrụ nkeji iri asaa (10 * 7) Ebe ọ bụ na otu nkeji nwere sekọnd iri isii, ngụkọta oge onye ahụ na-enye ọkụ ga-arụ ọrụ n'otu izu ga-abụ 70 * 60 = sekọnd 4,200. Ebe ọ bụ na onye ofufe ahụ nwere ike ịmepụta ikuku nke 10 lita kwa sekọnd, na 4200 sekọnd, ọ ga-emepụta ikuku nke 4200 * 10 = 42000 lita. 