Two old rsm students were standing twenty feet apart when they spotted mrs. rifkin. if they immediately run in opposite directions with speeds of 180 feet per minute and 120 feet per minute respectively, how many minutes will pass before they are 2,420 feet apart?

8 minutes  would pass before they are 2,420 feet part

Since the two students are moving in the opposite direction, then the relative speed will be the sum of their speed. This can be expressed as:

Relative speed = speed of student X + the speed of student Y

Relative speed = +  

=

Recall the distance between the two students is  ,

To determine the time that would pass before they are 2,420 feet apart, then we have to use the formula to calculate time, which is:

Time = distance / time

=

=  

Thus, 8 minutes  would pass before they are 2,420 feet part.

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