 
 <translate> Jake has to descend 30 steps on 9 floors for a total of 9 * 30 = 270 steps. He descends 3 steps every second so he will descend 270 steps in 270 / 3 = 90 seconds. Austin will get down after only a minute (60 seconds) so Jake will get down 90 - 60 = 30 seconds later. So the final answer is 30. <ibo> Jake ga-agbadata steepụ 30 n'elu ụlọ 9 maka ngụkọta nke 9 * 30 = steepụ 270. Ọ na-agbadata nzọụkwụ atọ kwa sekọnd, ya mere ọ ga-agbadata nzọụkwụ 270 na 270 / 3 = 90 sekọnd. Austin ga-agbadata mgbe naanị otu nkeji (60 sekọnd) ka Jake ga-agbadata 90 - 60 = 30 sekọnd mgbe e mesịrị. Ya mere, azịza ikpeazụ bụ 30. 