Math Problem Statement

Pintu thrown two dices simultaneously what is the probability that at least one of them shows a number greater than three . List the outcomes

Solution

To solve this problem, let's first consider the total number of possible outcomes when two dice are thrown.

Total Possible Outcomes:

Each die has 6 faces, so when two dice are thrown, the total number of possible outcomes is:

6×6=366 \times 6 = 36

Favorable Outcomes:

Now, we need to find the probability that at least one die shows a number greater than 3. The numbers greater than 3 on a die are 4, 5, and 6. We can count the outcomes where at least one die shows a 4, 5, or 6.

Case 1: First die shows 4, 5, or 6:

  • If the first die shows 4, 5, or 6, the second die can show any of the 6 numbers (1, 2, 3, 4, 5, or 6).
  • So, there are 3×6=183 \times 6 = 18 favorable outcomes.

Case 2: Second die shows 4, 5, or 6 (and the first die shows a number less than or equal to 3):

  • If the second die shows 4, 5, or 6 and the first die shows 1, 2, or 3.
  • So, there are 3×3=93 \times 3 = 9 additional favorable outcomes.

Adding these gives 18+9=2718 + 9 = 27 favorable outcomes.

Probability:

The probability that at least one die shows a number greater than 3 is:

Probability=Number of favorable outcomesTotal number of outcomes=2736=34\text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{27}{36} = \frac{3}{4}

List of Favorable Outcomes:

The favorable outcomes where at least one die shows a number greater than 3 are:

[ (4,1), (4,2), (4,

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Math Problem Analysis

Mathematical Concepts

Probability
Combinatorics

Formulas

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Theorems

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Suitable Grade Level

Grades 7-9