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    本题由lindy提供
985次学习

During a car trip, Maria stopped to rest after she

traveled 1/2 of the total distance to her destination. She stopped again after she traveled 1/4 of the distance remaining between her first stop and her destination, and then she drove the remaining 120 miles to her destination. What was the total distance, in miles, from Maria's starting point to her destination?


    (A) 280

    (B) 320

    (C) 360

    (D) 420

    (E) 480


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答案:
B

M 停下来

息在走完1/2全程之后,又走了1/4剩下路程;她开完剩下120m,问全程?


设全程x

1/2x+1/2x*1/4+120=x

X=320


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