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In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green ?

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RS AGGARWAL-PROBABILITY-All Questions
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  3. In a box, there are 8 red, 7 blue and 6 green balls. One ball is picke...

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  4. A box contains 4 red, 5 green and 6 white balls. A ball is drawn at...

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  5. A basket contains 4 red, 5 blue and 3 green marbles. If 2 marbles a...

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  6. An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If two...

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  7. A basket contains 6 blue, 2 red, 4 green and 3 yellow balls. If thr...

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  8. An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If thr...

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  9. An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If fou...

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  10. An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If two...

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  11. A basket contains 6 blue, 2 red, 4 green and 3 yellow balls. If two...

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  12. A basket contains 4 red, 5 blue and 3 green marbles. If three marbl...

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  13. An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If 4 m...

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  14. A basket contains 6 blue, 2 red, 4 green and 3 yellow balls. If 5 b...

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  15. An urn contains 2 red, 3 green and 2 blue balls. If 2 balls are dra...

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  16. A box contains 10 black and 10 white balls. What is the probability...

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  19. Four persons are selected at random out of 3 men, 2 women and 4 chi...

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  20. Two dice are tossed. The probability that the total score is a prim...

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