AMC 8 2018 Problem 6

AMC8 2018 年第 6

行程问题★★☆☆☆
On a trip to the beach, Anh traveled 50 miles on the highway and 10 miles on a coastal access road. He drove three times as fast on the highway as on the coastal road. If Anh spent 30 minutes driving on the coastal road, how many minutes did his entire trip take?
在去海滩的路上,Anh 先在高速上开了 50 英里,然后在沿海通道上开了 10 英里。他在高速上的开车速度是在沿海通道上的 3 倍。若 Anh 在沿海通道上开了 30 分钟,那么他全程开了多少分钟?
  1. A.50
  2. B.70
  3. C.80
  4. D.90
  5. E.100

正确答案 · Correct Answer

C

解析 · Solution

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