IEEE Weekly Puzzle

17 March 2014 Comments Off on IEEE Weekly Puzzle

#16 – Siblings

Arda and Berna are siblings. Arda has 5 times as many sisters as brothers. If one of his sisters had been a boy, Berna would have an equal number of brothers and sisters. How many siblings are there? How many of them are male? How many are female?

The Prize for This Question: Rubik’s 3×3 Cube

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This question was prepared by Emrehan Halıcı, president of the Turkey Intelligence Foundation, for Bilkent IEEE.