Correct Answer - Option 2 : 91/216

**Formula used:**

Probability = Favourable outcomes/Total number of outcomes

**Concept used:**

When three dice are thrown then the total number of outcomes = 6^{3} = 216

**Calculation:**

Total number of outcomes = 216

The probability of not getting 3 on a single die = 5/6

The probability of not getting 3 on all 3 dice = (5/6)^{3} = 125/216

The probability of getting 3 on at least one die = 1 – The probability of not getting 3 on all 3 dice

⇒ 1 – (125/216)

⇒ 91/216

**∴ The required probability is 91/216**