Two squares are chosen at random on a chessboard (see figure). The probability that they have a side in common is :
Two squares are chosen at random on a chessboard (see figure). The probability that they have a side in common is :
- [JEE MAIN 2021]
- A
$\frac{2}{7}$
- B
$\frac{1}{18}$
- C
$\frac{1}{7}$
- D
$\frac{1}{9}$
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- [JEE MAIN 2022]
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