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SAT Math Practice Exam

Category - Mathematics - Hard

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Peter drives a car and covers x miles in h hours and covers next y miles in next h hours. What is the average speed of his car?

(x-y)/2h
2(x+y)/h
2(x+y)/2h
(x+y)/2h

Explanation

Answer D- Speed = Total distance / Total time = (x+y)/ (h+h) = (x+y)/ 2h

Key takeaway: In speed, distance and time problem, work out the total distance travelled and the time taken.

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