Which two numbers should replace the question marks below ?19, 20, 21, ?, ?, 26

游客2023-10-15 60

问题 Which two numbers should replace the question marks below ?
19, 20, 21, ?, ?, 26, 28, 32, 33, 40

选项

答案 22 and 24

解析 (奇数位置上的数字以19开始，+2，+3，+4，+5形成一个数列。偶数位置上的数字以20开始，+2，+4，+6，+8形成另一数列。)

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