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There are 2 red, 3 blue and 5 black balls in a bag. A ball is drawn from the bag without looking in to the bag. What is the probability of getting a non-blue ball?
- a)3/5
- b)7/10
- c)2/5
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
There are 2 red, 3 blue and 5 black balls in a bag. A ball is drawn fr...
In this question it is clearly said that probability of non blue means instead of blue colour,
then p= no. of outcome/
total no. of outcome
= 7/10 ans
then p= no. of outcome/
total no. of outcome
= 7/10 ans
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Community Answer
There are 2 red, 3 blue and 5 black balls in a bag. A ball is drawn fr...
To find the probability of getting a non-blue ball, we need to determine the total number of balls and the number of non-blue balls in the bag.
Step 1: Find the total number of balls in the bag.
The bag contains 2 red balls, 3 blue balls, and 5 black balls. Therefore, the total number of balls in the bag is:
2 + 3 + 5 = 10
Step 2: Find the number of non-blue balls in the bag.
The bag contains 2 red balls and 5 black balls. Therefore, the number of non-blue balls in the bag is:
2 + 5 = 7
Step 3: Calculate the probability of getting a non-blue ball.
Probability is calculated by dividing the number of desired outcomes by the number of possible outcomes. In this case, the number of desired outcomes is the number of non-blue balls (7), and the number of possible outcomes is the total number of balls (10). Therefore, the probability of getting a non-blue ball is:
7/10
Hence, the correct answer is option B) 7/10.
Step 1: Find the total number of balls in the bag.
The bag contains 2 red balls, 3 blue balls, and 5 black balls. Therefore, the total number of balls in the bag is:
2 + 3 + 5 = 10
Step 2: Find the number of non-blue balls in the bag.
The bag contains 2 red balls and 5 black balls. Therefore, the number of non-blue balls in the bag is:
2 + 5 = 7
Step 3: Calculate the probability of getting a non-blue ball.
Probability is calculated by dividing the number of desired outcomes by the number of possible outcomes. In this case, the number of desired outcomes is the number of non-blue balls (7), and the number of possible outcomes is the total number of balls (10). Therefore, the probability of getting a non-blue ball is:
7/10
Hence, the correct answer is option B) 7/10.
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There are 2 red, 3 blue and 5 black balls in a bag. A ball is drawn from the bag without looking in to the bag. What is the probability of getting a non-blue ball?a)3/5b)7/10c)2/5d)None of theseCorrect answer is option 'B'. Can you explain this answer?
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