**The box contains 18 identical balls of white color, 27 of red color and 15 of green color. What is the probability that a green ball will be removed from the box?**

0,3

0,45

0,25

0,07




To solve this, we need to calculate the probability of randomly selecting a green ball from the box.

### Step-by-step breakdown:

1. **Total number of balls in the box**:
   - White balls = 18
   - Red balls = 27
   - Green balls = 15

   The total number of balls is:
   \[
   \text{Total} = 18 + 27 + 15 = 60
   \]

2. **Number of green balls** = 15.

3. **Probability formula**:
   The probability of selecting a green ball is the ratio of the number of green balls to the total number of balls:
   \[
   P(\text{Green}) = \frac{\text{Number of Green Balls}}{\text{Total Number of Balls}} = \frac{15}{60} = 0.25
   \]

### Conclusion:
The probability of selecting a green ball is **0.25**.

Would you like more details on this or any other clarifications?

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Here are 5 related questions:
1. What is the probability of selecting a red ball?
2. What is the probability of selecting a white ball?
3. What is the probability of not selecting a green ball?
4. If 3 balls are removed, what is the new probability of selecting a green ball?
5. What if another color of balls is added to the box?

**Tip**: Probabilities always sum to 1 for all possible outcomes in an experiment!

The box contains 18 identical balls of white color, 27 of red color and 15 of green color. What is the probability that a green ball will be removed from the box?

Learn how to calculate the probability of selecting a green ball from a box containing 18 white, 27 red, and 15 green balls. This example demonstrates the application of probability formulas and theorems for students in Grades 6-8.

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