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A box contains 5 red, 8 blue and 3 green...

A box contains 5 red, 8 blue and 3 green pens.
Rutuja wants to pick a pen at random.What is the probability that the pen is blue?

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The correct Answer is:
`therefore P(A) = (n(A))/(n(S)) = (8)/(16) = (1)/(2)`
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UNIQUE PUBLICATION-PROBABILITY -PROBLEM SET 5
  1. There are 40 cards in a bag. Each bears a number from 1 to 40 . ...

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  2. In n(A) =2, P(A) = (1)/(5), then n( S) = ?

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  3. Basketball players John, Vasim, Akash were practising the ball drop in...

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  4. In a hockey team there are 6 defenders, 4 offenders and 1 goalie . Ou...

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  5. Joseph kept 26 cards in a cap, bearing one English letter on each card...

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  6. A balloon vendor has 2 red ,3 blue and 4 green balloons. He wants ...

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  7. A balloon vendor has 2 red ,3 blue and 4 green balloons. He wants ...

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  8. A balloon vendor has 2 red ,3 blue and 4 green balloons. He wants ...

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  9. A box contains 5 red, 8 blue and 3 green pens. Rutuja wants to pick ...

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  10. A box contains 30 tickets , bearing only one number form 1 to 30 o...

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  11. A box contains 30 tickets , bearing only one number form 1 to 30 o...

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  12. A game of chance consists of spinning an arrow which comes to rest po...

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  13. There are six cards in a box, each bearing a number from 0 to 5 . Find...

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  14. A bag contains 3 red, 3 white and 3 green balls. One ball is taken ...

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  15. Each card bears one letter from the word 'mathematics'. The cards are...

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  16. Out of 200 students from a school, 135 like Kabaddi and the remaining ...

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  17. A two digit number is to be formed the digit 0,1,2,3,4. Repetition...

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  18. A two digit number is to be formed the digit 0,1,2,3,4. Repetition...

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  19. A two digit number is to be formed the digit 0,1,2,3,4. Repetition...

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  20. The faces of a die bear number 0,1,2,3,4,5. If the die is rolled twi...

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