Question
Justin takes three times as long to do a job as Carl does, suppose t represents the time it takes Carl to do the job. Then 3t represents the time it takes Justin. How long does it take Justin if Carl takes (a) 30 sec? (b) 90 sec? (c) 2 min?
Answers
Ms. Sue
3t =
3 * 30 = 90
3 * 90 = 180
3 * 30 = 90
3 * 90 = 180
Gloria
is 90 sec