P(of product of 2 dices) = 1/6 x 1/6 = 1/36
If we have 2 similar product then P(2 similar) = 2/36
If we have 3 similar product then P(3 similar) = 3/36
P(n similar) = n/36
P =0.2222 ====n/36 =0.2222 ≈ n=8 (right)
P =0.1667====n/36 = 0.1667 ≈ n=8 (right)
P = 0.7778====n/36 = 0.7778 ≈n = 28 WRONG ( with 2 dice we cannot get 28, since 28 = 4x7 or 7x4 and the max in one dye is 6)