A bag contains 5 black balls, 4 white ba...

A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball is selected random wise the probability that it is black or red ball is

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RD SHARMA ENGLISH-PROBABILITY-All Questions

Find the probability that a leap year will have 53 Friday or 53 Sat...
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A person write 4 letters and addresses 4 envelopes. If the letters ...
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A and B are two events such that P(A)=0. 25\ a n d\ P(B)=0. 50. The ...
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If the probability of A failing in an examination is 1/5 and that of B...
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A box contains 10 good articles and 6 defective articles. One item ...
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Three integers are chosen at random from the first 20 integers. The ...
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Out of 30 consecutive integers, 2 are chosen at random. the probabi...
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A bag contains 5 black balls, 4 white balls and 3 red balls. If a ba...
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Two dice are thrown simultaneously. the probability of getting a pa...
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An urn contains 9 balls two of which are rd, three blue and four bl...
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Five persons entered the lift cabin on the ground floor of an 8 flo...
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A box contains 10 good articles and 6 defective articles. One item ...
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A box contains 6 nails and 10 nuts. Half of the nails and half of th...
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If S is a sample space, then P(A) =1/3P(B) and S=A uu B where A and ...
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A mapping is select at random from the set of all the mappings of t...
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If A , B ,\ C are three mutually exclusive and exhausitive events of...
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If A and B are mutually exclusive events then a. P(A)lt=P( B' ) b....
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Three numbers are chosen from 1 to 20. The probability that they are...
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Six boys and six girls sit in a row randomly. Find the probability tha...
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Without repetition of the numbers, four digit numbers are formed with ...
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