ProbabilityMedium
Question
If two of the 64 squares are chosen at random on a chess board, the probability that they have a side in common is -
Options
A.1/9
B.1/18
C.2/7
D.none of these
Solution
Total cases of selecting two squares out of 64 = 64C2
Favourable cases = 8.7 + 7.8
Probability =
Favourable cases = 8.7 + 7.8
Probability =
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