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Three Numbers Are Chosen At Random Without Replacement From 1 2 8 The Probability That Their Minimum Is 3 Given That Their Maximum Is 6 Is

Three numbers are chosen at random without replacement from {1, 2, …8}. The probability that their minimum is 3, given... View Article

If X And Y Are Two Events That P X By Y Equals 1 By 2 P Y By X Equals 1 By 3 And P X Intersection Y Equals 1 By 6 Then Which Of The Following

If X and Y are two events that P(X ∕ Y ) = 1/2, P(Y ∕ X) = 1/3 and... View Article

A Box B1 Contains 1 White Ball 3 Red Balls And 2 Black Balls If 2 Balls Are Drawn Without Replacement From A Randomly Selected Box And One Of The Balls

A box B1 contains 1 white ball, 3 red balls and 2 black balls. Another box B2 contains 2 white... View Article

A Box B1 Contains 1 White Ball 3 Red Balls And 2 Black Balls Another Box B2 Contains 2 White Balls 3 Red Balls And 4 Black Balls A Third Box

A box B1 contains 1 white ball, 3 red balls and 2 black balls. Another box B2 contains 2 white... View Article

If Four Persons Independently Solve A Certain Problem Correctly With Probabilities 1 By 2 3 By 4 1 By 4 And 1 By 8 Then The Probability That

If four persons independently solve a certain problem correctly with probabilities 1/2, 3/4, 1/4 and 1/8. Then, the probability that... View Article

The Probability Of India Winning A Test Match Against South Africa Is 1 By 2 Assuming Independence From Match To Match Played The Probability That

The probability of India winning a test match against South Africa is 1/2 assuming independence from match to match played.... View Article

A Candidate Takes Three Tests In Succession And The Probability Of Passing The First Test Is P The Probability Of Passing Each Succeeding Test Is P Or P By 2

A candidate takes three tests in succession and the probability of passing the first test is p. The probability of... View Article

If A B And C Are Mutually Exclusive And Exhaustive Events Of A Random Experiment Such That P Of B Equals 3 By 2 P Of A And P Of C Equals 1 By 2

If A , B and C are mutually exclusive and exhaustive events of a random experiment such that P(B) =... View Article

A Student Answers A Multiple Choice Question With 5 Alternatives Of Which Exactly One Is Correct The Probability That He Knows The Correct Answer Is

A student answers a multiple choice question with 5 alternatives, of which exactly one is correct. The probability that he... View Article

If Events A B Are Independent P A Bar Equal To 2 By 3 And P B Bar Equal To 2 By 7 Then P Of A Intersection B Is Equal To

If events A, B are independent, P(A ‘) = 2/3 and P(B ‘) = 2/7 then P(A ∩ B) is... View Article

Consider The Set Of Eight Vectors V Aibjck Abc 11 Three Noncoplanar Vectors

Consider the set of eight vectors V = [ai+bj+ck: a,b,c ∈ {-1,1}]. Three non-coplanar vectors can be chosen from v... View Article

Sum Of R 0 To M Nrcn Is Equal To

1) n+m+1Cn+1 2) n+m+2Cn 3) n+m+3Cn-1 4) None of these Answer: (1) n+m+1Cn+1 Solution:

In How Many Ways Can 21 Books On English And 19 Books On Hindi Be Placed In A Row

1) 3990 2) 1540 3) 1995 4) 1405 Answer: (2) 1540 Solution: As per the given condition, total number of... View Article

A Threedigit Number N Is Such That The Last Two Digits Of It Are Equal And Differ From The First

1) 64 2) 72 3) 81 4) 900 Answer: (3) 81 Solution: The hundreds place of three digit numbers can... View Article

In A Club Election The Number Of Contestants Is One More Than The Number Of Maximum

1) 4 2) 5 3) 6 4) 7 Answer:(4) 7 As per the given question, voter has to vote for... View Article

If Pn R1680 And Cn R 70 Then 69n R Is Equal To

If P(n ,r)=1680 and C(n , r) = 70 , then 69n + r! is equal to 1) 128 2)... View Article

The Number Of Ways In Which One Can Select Three Distinct Integers Between 1 And 30

1) 455 2) 1575 3) 1120 4) 2030 5) 1930 Answer: (4) 2030 Solution: Number of integers = 1 to... View Article

There Are 5 Ways Leading To A Town From A Village The Number Of Different Ways

1) 20 2) 25 3) 5 4) 10 Answer: (2) 25 Solution: There are total 5 ways from village to... View Article

At An Election A Voter May Vote For Any Number Of Candidates Not Greater Than The Number

At an election, a voter may vote for any number of candidates not greater than the number to be elected.... View Article

Number Of Divisors Of The Form 4n 2 N 0 Of The Integer 240 Is

Number of divisors of the form (4n + 2), n ≥ 0 of the integer 240 is 1) 4 2)... View Article

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