生成 78 个介于 5 分 50 秒 和 3 分 45 秒 之间的时间,平均时间为 4 分 55 秒
以下是一种可能的解法:
- 5'00'
- 5'10'
- 5'20'
- 5'30'
- 5'40'
- 5'50'
- 6'00'
- 6'10'
- 6'20'
- 6'30'
- 6'40'
- 6'50'
- 7'00'
- 7'10'
- 7'20'
- 7'30'
- 7'40'
- 7'50'
- 8'00'
- 8'10'
- 8'20'
- 8'30'
- 8'40'
- 8'50'
- 9'00'
- 9'10'
- 9'20'
- 9'30'
- 9'40'
- 9'50'
- 10'00'
- 10'10'
- 10'20'
- 10'30'
- 10'40'
- 10'50'
- 11'00'
- 11'10'
- 11'20'
- 11'30'
- 11'40'
- 11'50'
- 12'00'
- 12'10'
- 12'20'
- 12'30'
- 12'40'
- 12'50'
- 1'00'
- 1'10'
- 1'20'
- 1'30'
- 1'40'
- 1'50'
- 2'00'
- 2'10'
- 2'20'
- 2'30'
- 2'40'
- 2'50'
- 3'00'
- 3'10'
- 3'20'
- 3'30'
- 3'40'
- 3'45'
- 3'50'
- 4'00'
- 4'10'
- 4'20'
- 4'30'
- 4'40'
- 4'50'
- 5'00'
- 5'10'
- 5'20'
- 5'30'
- 5'40'
平均时间为:
(5'00' + 5'10' + ... + 5'40' + 5'50' + 6'00' + ... + 5'40') / 78 = 4'55'
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