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A box contains 5 red marbles, 8 white ma...

A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What s the probability that the marble taken out will be
(i) red?
(ii) white?
(iii) not green?

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OSWAAL PUBLICATION-PROBABILITY -TEXTBOOK CORNER (EXERCISE 14.1)
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  8. A game of chance consists of spinning an arrow which comes to rest poi...

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  10. One card is drawn fram a well shuffled deck of 52 cards. Find the prob...

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  11. Five cards - then ten, jack, queen, king and ace of diamonds, are well...

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  13. (i) A lot of20 bulbs sontains 4 defective ones. One bulb is drawn at r...

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  14. A box contains 90 discs which are numbered from 1 to 90. If one disc i...

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  15. A child has a die whose six faces show the letters as given below : ...

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  16. Suppose you drop a die at random on the rectangular region . What is t...

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  17. A lot consists of 144 ball pens of which 20 are defective and the othe...

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  18. A game consists of tossing a one rupee coin 3 times and noting its out...

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  19. A die is thrown twice. What is the probability that: (i) 5 will not ...

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  20. Which of the following arguments are correct and which are not correct...

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