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Bhoomika
Subject: Math
, asked on 12/3/16
Two unbiased dice are thrown, find the probability that neither a doublet nor a total of 10 will appear
Answer
1
Bhoomika
Subject: Math
, asked on 12/3/16
In a single throw of to die write the probability of getting a sum of 9 or 11
Answer
2
Amritesh Mohan Singh Jeena
Subject: Math
, asked on 18/2/16
in a huddle race the odds that A will win are 2 to 3 and the odds that B will win are 1 to 2. Find the probability
(i) A or B wins the race, assuming there is no tie.
(ii) ratio of odds that A or B coins the race.
Answer
1
Ajil
Subject: Math
, asked on 16/2/16
If p & q are chosen randomly from the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} with replacement. Determine
the probability that the roots of the equation x2+ px + q = 0 are real.
Answer
1
Soumin Kumar
Subject: Math
, asked on 20/1/16
There are 6 women and 4 men in the city council. If two council members are selected at random, then what is the probability that those two are women?
Answer
2
Suryansu Dash
Subject: Math
, asked on 28/12/15
8 persons stand in a line at random. What is the probability that 2 persons X and Y don't stand together?
Answer
1
Suryansu Dash
Subject: Math
, asked on 28/12/15
Dear experts,
5 boys and 3 girls are playing in a chess tournament. All boys have the same probability p of winning the tournament and all girls have the same probability q of winning. If p=2q, find the probability that.
i) a boy wins the tournament.
ii) a girl wins the tournament.
Answer
1
Ishitta
Subject: Math
, asked on 16/12/15
An user of Facebook which is two or more days older can send a friend request to some one to join Facebook if initially there is one user on day one then find a recurrence relation for an where an is number of users after n days
Answer
1
Ishitta
Subject: Math
, asked on 16/12/15
In how many ways can 2n+1 identical balls be placed in 3 distinct boxes so that any two boxes together will contain more balls than the third box
Answer
1
Ishitta
Subject: Math
, asked on 16/12/15
Find no of ways in which n 1 and n 2 can be arranged in a row so that upto any point in the row no. Of 1 is more than or equal to no of 2
Answer
1
Ishitta
Subject: Math
, asked on 15/12/15
Two players of equal skills a and b are playing a set of game, they leave off playing when a wants 3 points and b wants 2 if the stake is rs16what share ought each to take
Answer
1
Ishitta
Subject: Math
, asked on 15/12/15
Urn a contains 6 red and 4 black balls and b contains 4 red and 6 black balls .one ball is drawn at random from urn a and placed in urn b then one ball is drawn at random from urn b and placed in a .if one ball is now drawn at random from urn a then find the probability that it is red
Answer
1
Ishitta
Subject: Math
, asked on 15/12/15
Suppose that s be the set of all ordered 4 tuplets(x,y,z,w) of the positive integers which are the solutions of x+y+z+w=21 .one such ordered tupleof solutions is selected at random from s .then find the probability that x>y
Answer
1
Ishitta
Subject: Math
, asked on 14/12/15
On a particular day six persons pick six different books one each from different counters at a public library . At closing time they arbitrarily put their books to the vacant counters . Then find the probability that exactly two books are at their previous places
Answer
1
Ishitta
Subject: Math
, asked on 14/12/15
If a and b has n+1 and n fair coins . Then find the probability that a gets more heads than b
Answer
1
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What are you looking for?

(i) A or B wins the race, assuming there is no tie.

(ii) ratio of odds that A or B coins the race.

the probability that the roots of the equation x2+ px + q = 0 are real.

5 boys and 3 girls are playing in a chess tournament. All boys have the same probability p of winning the tournament and all girls have the same probability q of winning. If p=2q, find the probability that.

i) a boy wins the tournament.

ii) a girl wins the tournament.