Importance must always be given to all the information's that are already given in the question. Based on those information's the answer to the question can be easily deduced. Number of Hamburgers eaten by Justin in 10 minutes = 15 Then The number of hamburgers eaten by Justin in 1 minute = 15/10 = 1.5 So option "B" is the correct option among all the options given in the question. It can seen from the deduction that Justin can eat 1.5 hamburgers in 1 minute. I hope the procedure is clear enough for you to understand.
