Jane Street Interview Question
mental math 56^2
Interview Answers
Anonymous
Oct 30, 2010
55^2 = 3,025, then 3,025 + 55 + 55 + 1 = 3,136 since (55 + 1) (55 + 1) = 56^2
1
mental math 56^2
Anonymous
55^2 = 3,025, then 3,025 + 55 + 55 + 1 = 3,136 since (55 + 1) (55 + 1) = 56^2
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