NDA2023MathematicsProbabilityActual
Two dice are thrown. What is the probability that difference of number on them is 2 or 3 ?
Options
- A7 36
- B7 18
- C5 18
- D11 36
Correct answer
B. 7 18
Step-by-step solution
When difference is 2 then (1,3),(2,4),(3,5),(4,6),(3,1),(4,2),(5,3),(6,4) When the difference is 3 then (1,4),(2,5),(3,6),(4,1),(5,2),(6,3) So, required probability = 14 36 = 7 18