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A bag contains 4 red, 6 black and 5 whit...

A bag contains 4 red, 6 black and 5 white balls, A ball is drawn at random from the bag. Find the probability that the ball drawn is:
red or black

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The correct Answer is:
`(2)/(3)`
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ICSE-PROBABILITY-Exercise
  1. A bag contains 4 red, 6 black and 5 white balls, A ball is drawn at ra...

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  2. A die is thrown, find the probability of getting: a prime number

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  3. A dice is thrown once. Find the probability of getting : a number g...

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  4. A die is thrown, find the probability of getting: a number not grea...

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  5. A coin is tossed. What is the probability of getting: a tail?

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  6. A coin is tossed. What is the probability of getting: a head?

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  7. A coin is tossed twice. Find the probability of getting: exactly on...

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  8. A coin is tossed twice. Find the probability of getting: exactly on...

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  9. A coin is tossed twice. Find the probability of getting: two tails

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  10. A coin is tossed twice. Find the probability of getting: two heads

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  11. A letter is chosen from the word 'PENCIL', what is the probability tha...

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  12. A bag contains a black ball, a red ball and a green ball, all the ball...

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  13. A bag contains a black ball, a red ball and a green ball, all the ball...

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  14. A bag contains a black ball, a red ball and a green ball, all the ball...

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  15. In a single throw of a die, find the probability of getting a number ...

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  16. In a single throw of a die, find the probability of getting a number ...

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  17. In a single throw of a dice, find the probability of getting a number ...

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  18. A bag contains 3 white, 5 black and 2 red balls, all of the same shape...

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  19. A bag contains 3 white, 5 black and 2 red balls, all of the same size....

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  20. A bag contains 3 white, 5 black and 2 red balls, all of the same shape...

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  21. A bag contains 3 white, 5 black and 2 red balls, all of the same size....

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