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SAT官方每日一题附答案和解析[数学](2020年3月25日)

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Mathematics>Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

It takes a kayaker 36 minutes to paddle the first part of a trip and 1 hour and 40 minutes to paddle the second part of the trip. The kayaker's average speed on the first part of this trip was 2 miles per hour faster than on the second part of the trip. If the distance of the trip was a total of 8 miles, what was the kayaker's average speed, in miles per hour, on the first part of the trip?

A.2.4
B.3
C.5
D.6.7

重点单词   查看全部解释    
minutes ['minits]

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n. 会议记录,(复数)分钟

 
multiple ['mʌltipl]

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adj. 许多,多种多样的
n. 倍数,并联

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