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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 is the probillity that the marble taken out will be
red ?

Text Solution

Verified by Experts

The correct Answer is:
i] `5/(17)`
ii] `8/(17)`
iii] `(13)/(17)`.
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ZEN PUBLICATION-PROBABILITY-TEXTUAL EXERCISES (14.1)
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  2. It is given that in a group of 3 students, the probability of 2 studen...

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  3. A bag contains 3 red balls and 5 black balls. A ball is drawn at rando...

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  4. A box contains 5 red marbles, 8 white marbles and 4 green marbles . On...

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  5. A piggy bank contains hundred 50p coins, fifty Rs. 1 coins, twenty Rs....

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  6. Gopi bus a fish from a shop for his aquarium. The shopkeeper takes out...

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  7. A game of chance consists of spinning an arrow which comes to rest poi...

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  8. A die is thrown once, Find the probability of getting (i) a prime nu...

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  9. One card is drawn from a well-shuffled deck of 52 cards. Find the pr...

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  10. Five cards - the ten , jack , queen , king and ace of diamonds, are we...

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  11. 12 defective pens are accidentally mixed with 132 good ones. It is not...

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  12. A lot of 20 bulbs contain 4 defective ones. One bulb is drawn at rando...

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  13. A box contains 90 dices which are numbered from 1 to 90. If one dise i...

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  14. A child has a die whose six faces shows the letters as given below: ...

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  15. Suppose you drop a die at random one the rectangular region shown in t...

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  16. A lot consists of 144 ball pens of which 23 are defective and the othe...

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  17. Two dice, one blue and one grey, are thrown at the same time. i] Wri...

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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 come u...

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

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