Saikumar,Varun and Prasanth start from one of the points X and Y and move in their vehicles towards the other point. The distance between X and Y is 550 km. Saikumar and Varun start at 7 am from X and Y respectively whereas Prasanth starts from X at 8 am. Saikumar, Varun and Prasanth maintain constant speed of 60 km, 50 km and 70 km respectively. Which pair Saikumar-Varun or Varun-Prasanth or Prasanth-Saikumar would meet first.
can't be determined
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