A bag contains x red ball x+3 blue balls and 2x+2 green balls.A box
Answers
Answer:
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Answer:
The probability of the red ball and green balls in total is 18/35.
Step-by-step explanation:
Given that:
A bag contains x red and (x + 3)green balls.
The probability of red balls is 2/5.
The formula to find the probability is:
The Probability = Number of observation of balls/Total number of observation of balls
Let us consider that,
The number of green balls is (x + 3).
The number of red balls is x.
The total number of question = x + x + 3 = 2x + 3
Now, we are going to consider that,
The probability of a red balls is 2/5.
x/(2x + 3) = 2/5
5x = 4x + 6
5x-4x =6
x = 6
Le the number of green balls = 6 + 3 = 9
The total ball = 6 + 9 = 15.
The number of ways selecting a red ball and green ball together = 6C1 × 9C1 = 6 × 9 = 54
The total number of ways of selecting balls = 15C2 = 15/2× 14/1 = 105
The probability = 54/105 = 18/35
The probability of the red ball and green balls in total is 18/35.
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