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In a box, there are 28 marbles of which ...

In a box, there are 28 marbles of which x are green and the rest are white. If the probability of getting a green marble is `2/7`. Then number of green marbles=…….

A

8

B

9

C

10

D

13

Text Solution

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The correct Answer is:
A
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VGS PUBLICATION-BRILLIANT-PROBABILITY-CREATIVE BITS FOR CCE MODEL EXAMINATION
  1. Probability of an event lies between ……….and…………..

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  2. P (E ) +P ( E' )=…….

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  3. In a box, there are 28 marbles of which x are green and the rest are w...

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  4. In a box, there are 28 marbles of which x are green and the rest are w...

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  5. IF E is an event whose probability is 2/5, then the probability of not...

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  6. From a well shuffled pack of cards, a card is drawn at random, then th...

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  7. From a well shuffled pack of cards, a card is drawn at random, then th...

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  8. IF an unbiased coin is tossed the probability of getting a tail is ………...

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  9. IF two dice are rolled simultaneously then the 'sum' with greatest pos...

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  10. If two events have same chances to happen, then they are called…………

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  11. If the occurrence of one event prevents the occurrence of another even...

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  12. Probability of switching on a bulb is a dark room is 0.35, then the pr...

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  13. The probability of raining a day is ………….

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  14. IF one side is chosen at random from the sides of a right triangle, th...

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  15. When a dice is thrown, the probability of getting neither a prime nor ...

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  16. When a coin is tossed the probability of getting a tail or head is…….

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  17. Getting a tail or head…………

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  18. Getting a prime (or) composite

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  19. Getting a red card (or) black card is……..

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  20. P (sure events)=…………..

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