GATE Civil Engineering
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Two dice are thrown simultaneously. The probability that the product of the numbers appearing on the top faces of the dice is a perfect square is

  1. $\frac{1}{9}$
  2. $\frac{2}{9}$
  3. $\frac{1}{3}$
  4. $\frac{4}{9}$
in Numerical Ability by (430 points)
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