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Mark and Trisha are traveling in the same direction and Mark is going 16 miles per hour. Trisha is going 12 miles per hour but started 8 miles before Mark. When will they meet up?

 Feb 26, 2021
 #1
avatar+30670 
+1

Their difference in spee is 16 - 12 = 4 mph

 

8 miles will take  8 / 4 = 2 hrs to catch up

 Feb 26, 2021
 #2
avatar+939 
+1

Relative to Trisha, Mark is traveling at 4 miles per hour. Trisha has an 8 mile lead, so it will take Mark hours to catch up.

 Feb 26, 2021

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