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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-red ball?
  • a)
    4/5
  • b)
    2/5
  • c)
    3/5
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
There are 2 red, 3 blue and 5 black balls in a bag. A ball is drawn fr...
Solution:

Total number of balls in the bag = 2 red + 3 blue + 5 black = 10 balls

Probability of getting a non-red ball = (number of non-red balls) / (total number of balls)

Number of non-red balls = 3 blue + 5 black = 8 balls

Therefore, probability of getting a non-red ball = 8/10 = 4/5

Hence, the correct option is A.
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Community Answer
There are 2 red, 3 blue and 5 black balls in a bag. A ball is drawn fr...
Probability = No. of event happened / Total no. of event
=( 3+5 ) ÷ (2+3+5) = 8 ÷ 10 = 4/5

Correct Answer : a) 4/5
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