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A box contains 10 good articles and 6 de...

A box contains 10 good articles and 6 defective articles. One item is drawn at random. the probability that it is either good or has a defect, is a. 64/64            b. 49/64            c. 40/64          d. 24/64

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RD SHARMA ENGLISH-PROBABILITY-All Questions
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  4. If the probability of A failing in an examination is 1/5 and that of B...

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  5. A box contains 10 good articles and 6 defective articles. One item ...

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  6. Three integers are chosen at random from the first 20 integers. The ...

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  7. Out of 30 consecutive integers, 2 are chosen at random. the probabi...

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  8. A bag contains 5 black balls, 4 white balls and 3 red balls. If a ba...

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  9. Two dice are thrown simultaneously. the probability of getting a pa...

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  10. An urn contains 9 balls two of which are rd, three blue and four bl...

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  11. Five persons entered the lift cabin on the ground floor of an 8 flo...

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  12. A box contains 10 good articles and 6 defective articles. One item ...

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  13. A box contains 6 nails and 10 nuts. Half of the nails and half of th...

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  14. If S is a sample space, then P(A) =1/3P(B) and S=A uu B where A and ...

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  15. A mapping is select at random from the set of all the mappings of t...

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  16. If A , B ,\ C are three mutually exclusive and exhausitive events of...

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  17. If A and B are mutually exclusive events then a. P(A)lt=P( B' ) b....

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  18. Three numbers are chosen from 1 to 20. The probability that they are...

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  19. Six boys and six girls sit in a row randomly. Find the probability tha...

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  20. Without repetition of the numbers, four digit numbers are formed with ...

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