 
 <translate> Kevin is taking a 600-mile trip, traveling at a rate of 50 miles per hour. How much faster must he travel to decrease his travel time by 4 hours? Let's be accurate as possible. <ibo> Kevin na-eme njem dị otu puku kilomita na narị ise, na-agba ihe dị ka kilomita iri ise n'otu awa. Olee otú ọ ga-esi mee ngwa ngwa iji belata awa anọ ọ ga-eji mee njem ahụ? Ka anyị mee ka nke a doo anya. 