What is the probability of getting a number greater than 6 on dice?
Mathematics ·Previously asked in JKSSB Inspector 2026
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Question
What is the probability of getting a number greater than 6 on dice?
- A. 1
- B. 0.5
- C. 0 (Correct answer)
- D. 0.25
Correct Answer
Option C — 0
Detailed Solution & Explanation
The correct answer is 0.
Key Points
- A standard die has faces numbered 1, 2, 3, 4, 5, 6, so the sample space is $S = \{1,2,3,4,5,6\}$ with $n(S) = 6$.
- No face carries a number greater than 6, so the number of favourable outcomes is zero:
- $P = \frac{0}{6} = \mathbf{0}$
- This is an impossible event — it cannot occur under any roll.
Additional Information
- Compare with the sure event in the preceding question: "a number less than 7" on the same die has probability 1, because all six outcomes qualify. The two questions are exact opposites built on the same sample space.
- Standard single-die probabilities:
- Any specific number: $\frac{1}{6}$
- An even number: $\frac{3}{6} = \frac{1}{2}$
- A prime number (2, 3, 5): $\frac{3}{6} = \frac{1}{2}$
- A number greater than 4: $\frac{2}{6} = \frac{1}{3}$
Topics covered: Mathematics Probability