AMC8 1999

AMC8 1999 · Q4

AMC8 1999 · Q4. It mainly tests Rates (speed).

The diagram shows the miles traveled by bikers Alberto and Bjorn. After four hours about how many more miles has Alberto biked than Bjorn?

图表显示了自行车手Alberto和Bjorn行驶的英里数。四小时后，Alberto比Bjorn多骑了大约多少英里？

(A) 15 15

(B) 20 20

(D) 30 30

(E) 35 35

Answer

Correct choice: (A)

正确答案：（A）

Solution

After 4 hours, we see that Bjorn biked 45 miles, and Alberto biked 60. Thus the answer is $60-45=15$ $\boxed{\text{(A)}}$.

4小时后，我们看到Bjorn骑了45英里，Alberto骑了60英里。因此答案是$60-45=15$ $\boxed{\text{(A)}}$ 。

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