Juan is a gold medalist in athletics. In the month of May, if Juan takes 12 seconds to run y yards, how many seconds will it take him to run x yards at the same rate? Choose the correct option
A) 10x/y B) 11x/y C) 9x/y D) 12x/y E) 13x/y
velocity=distance/time;   since he ran at same rate both d tyms,   y/12=x/t   so t=12x/y   ANSWER:12x/y
<result>D</result>
Juan is a gold medalist in athletics. In the month of May, if Juan takes 12 seconds to run y yards, how many seconds will it take him to run x yards at the same rate?