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An urn contains 6 red, 4 blue, 2 gree...

An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If four marbles are picked up at random, what is the probability that 1 is green, 2 are blue and 1 is red? `(13)/(35)` (b) `(24)/(455)` (c) `(11)/(15)` (d) `1/(13)` (e) None of these

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RS AGGARWAL-PROBABILITY-All Questions
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  2. An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If thr...

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

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

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

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

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

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

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

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

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

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  15. In a class, 30% of the students offered English, 20% offered Hindi ...

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  16. A husband and wife appear in an interview for two vacancies in the sam...

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  17. A speaks truth in 75% cases and B in 80% of the cases. In what perc...

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  18. A speaks truth in 60% cases and B speaks truth in 70% cases. The proba...

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  20. A bag contains 3 blue, 2 green and 5 red balls. If four balls are p...

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