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SAT Math Practice Exam

Category - Mathematics - Hard

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Peter drives the car at speed between 80km per hour and 120 km per hour, inclusive. What is the maximum time, in minutes, that he would take in covering 340 km?
  1. 170
  2. 240
  3. 255
  4. 270
  5. 300
Explanation
Answer: C - Peter will take maximum time if he derives at lowest speed 80 km per hour.
(340/ 80) x 60 = 255 minutes
Key takeaway: The basic formula is distance = speed X time However ,there may be different units used in the same problem.
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