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AP EAMCET201822 Apr 2018Morning ShiftMathematicsProbabilityActual

If a die is rolled three times, then the probability of getting a larger number on its face than the previous number each time, is

Options

  1. A15 216
  2. B5 54
  3. C13 216
  4. D1 18

Correct answer

B. 5 54

Step-by-step solution

Here, total number of possible out come =6^3=216 Now, we can choose any three numbers out of 6 numbers and we can place them in ascending order and we can place them in ascending order in only one way. So, favourable out come = ^6 C₃=20 Now, required probability = 20 216 = 5 54

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