Brain teaser for the week 20200725 每周烧次脑

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Difficulty level: ✮ ✮ ✮ ✮ ✮

What is the next letter in the following series: 

根据下面字母排列规律，问号处应该代入哪个字母？

a c d b e g h i f j l m n ?

(a)    k

(b)   l

(c)    m

(d)   n

(e)    o

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Answer to the last week 上期答案  Brain teaser for the week 20200718 每周烧次脑

(c) 99

This is tricky. If Patt is the fiftieth fastest runner, he would be number 50 in the sequence 1, 2, 3…50. To be the fiftieth slowest, he’d have to be number 50 in the sequence 50, 51, 52…99, since there are fifty numbers from 50 to 99 inclusive.

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