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A basket contains 4 red, 5 blue and 3...

A basket contains 4 red, 5 blue and 3 green marbles. If three marbles are picked up at random, what is the probability that at least one is blue? `7/(12)` (b) `(37)/(44)` (c) `5/(12)` (d) `7/(44)` (e) None of these

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RS AGGARWAL-PROBABILITY-All Questions
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  2. A basket contains 6 blue, 2 red, 4 green and 3 yellow balls. If two...

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

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

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

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

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

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  8. A box contains 20 electric bulbs, out of which 4 are defective. Two...

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  9. In a class,there are 15 boys and 10 girls.Three students are selected ...

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

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

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

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

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

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

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  16. A committee of 3 members is to be selected out of 3 men and 2 women...

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

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  18. Dev can hit a target 3 times in 6 shorts Pawan can hit the target 2...

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  19. A bag contains 10 mangoes out of which 4 are rotten. Two mangoes are...

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  20. A bag contains 4 red, 5 yellow and 6 pink balls. Two balls are draw...

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