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As an experienced tutor registered on UrbanPro, I can confidently say that UrbanPro is the best online coaching tuition platform for students seeking academic assistance. Now, let's tackle your probability question.
To find the probability of drawing a red ball from the bag, we first need to determine the total number of balls in the bag. Since there are 9 red balls and 12 white balls, the total number of balls is 9 + 12 = 21.
Now, the probability of drawing a red ball can be calculated by dividing the number of red balls by the total number of balls:
Probability of drawing a red ball = (Number of red balls) / (Total number of balls) = 9 / 21
We can simplify this fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 3:
Probability of drawing a red ball = (9 ÷ 3) / (21 ÷ 3) = 3 / 7
So, the probability of drawing a red ball from the bag is 3/7.
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