2025 · Q65
Two unbiased dice, each marked 1 to 6 on their faces, are rolled simultaneously. What is the probability that the sum of the outcomes on the top faces of both dice is 7 or 10?
General Mental Ability, Quantitative Aptitude and StatisticsProbability
- A0.15
- B0.20
- C0.25
- D0.30
Explanation
With two dice there are 36 outcomes. A sum of 7 has 6 favourable outcomes and a sum of 10 has 3 (4-6, 5-5, 6-4). The required probability is 9/36 = 0.25.