GATE 2025 AG – Question 8
General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 2 marks · Multiple choice
A fair six-sided die is rolled three times. Find probability of exactly one 6.
- 75/216
- 1/6
- 1/18
- 25/216
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Show answer and explanation
Correct answer: (A) 75/216
Explanation
Choose which roll is 6 in three ways. Each pattern has probability $(1/6)(5/6)^2$. Total = 3×25/216 = **75/216, A**.
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