Correct Answer - Option 4 : 1/6
Explanation
When 3 dice dice thrown the total outcomes n(s) = 216
Total outcomes having same digits of at least two dice are 36
(1, 1, 1), (1, 1, 2), (1, 1, 3), (1, 1, 4), (1, 1, 5), (1, 1, 6) -------(6, 6, 6)
∴ Probability of getting same digit of at least two dice = 36/216 = 1/6