Off Topic — HabitableZone

Off Topic » in reply to Brain Teaser

Re: Brain Teaser

3 seagulls, 4 pilings.

S = number of seagulls

N = number of pilings

S = 2N - 2

S = N + 1

N + 1 = 2N - 2

N + 3 = 2N

N = 3, S = 4

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