• # question_answer A coloured cube as shown alongside cut into 27 small cubes. What is the probability that a cube selected randomly have at least two faces painted? A)  $\frac{12}{27}$                      B)  $\frac{8}{27}$            C)  $\frac{1}{9}$                        D)  $\frac{20}{27}$

Correct Answer: D

Solution :

(d): Number of two faces painted cubes = 5 2 No. of thrice faces painted cubes = 8 $n\left( E \right)=12+8=20$ $n\left( S \right)=27$ $n\left( P \right)=\frac{20}{27}$

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