If a doctor gives you 3 pills and tells you to take one pill every half hour, ho

游客2024-08-12  9

问题 If a doctor gives you 3 pills and tells you to take one pill every half hour, how long will it take to take them all?

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答案 1 hour

解析 假设你在1点钟时吃第一片药,1点半时吃第二片,那么2点时就会吃完最后一片,总共需一小时。  
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