AMC8 2001
AMC8 2001 · Q1
AMC8 2001 · Q1. It mainly tests Unit conversion, Arithmetic misc.
Casey's shop class is making a golf trophy. He has to paint 300 dimples on a golf ball. If it takes him 2 seconds to paint one dimple, how many minutes will he need to do his job?
凯西的商店课正在制作一个高尔夫奖杯。他必须在高尔夫球上画300个坑坑。如果他画一个坑坑需要2秒，他需要多少分钟来完成他的工作？
(A)
4
4
(B)
6
6
(C)
8
8
(D)
10
10
(E)
12
12
Answer
Correct choice: (D)
正确答案：（D）
Solution
At 2 seconds per dimple, it takes $300 \times 2 = 600$ seconds to paint them. Since there are 60 seconds in a minute, he will need $600 \div 60 = 10$ minutes.
每个坑坑2秒，所以画它们需要 $300 \times 2 = 600$ 秒。因为1分钟有60秒，他需要 $600 \div 60 = 10$ 分钟。
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