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A box contains 6 nails and 10 nuts. Half...

A box contains 6 nails and 10 nuts. Half of the nails and half of the nuts are rusted. If one item is chosen at random, the probability that it is rusted or is a nail is

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A box contains 6 nails and 10 nuts. Half of the nails and half of the nuts are rusted. If one item is chosen at random, then find the probability that it is rusted or is a nail.

A box contains 6 nails and 10 nuts. Half of the nails and half of the nuts are rusted. If one item is chosen at random, then find the probability that it is rusted or is a nail.

A box contains 6 nails and 10 nuts. Half of the nails and half of the nuts are rusted. If one item is chosen at random, then find the probability that it is rusted or is a nail.

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A box contains 30 bolts and 40 nuts. Half of the bolts and half of the nuts are rusted. If two items are drawn at random from the box, what is the probability that either both are rusted or both are bolts ?

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RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. Find the probability that a leap year will have 53 Friday or 53 Sat...

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  2. A person write 4 letters and addresses 4 envelopes. If the letters ...

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  3. A and B are two events such that P(A)=0. 25\ a n d\ P(B)=0. 50. The ...

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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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