GRE Quant Permutation Practice. Number of squares in a chess board

Video explanation to an all time classic permutation combination question.

How many squares are there in a chess board?
A. 64
B. 65
C. 4096
D. 1296
E. 204

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More practice questions with video explanation for GRE Permutation Combination and Probability @


  1. 9c2*9c2 rectangles are there

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