Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
mobile
exams
ask
sample papers
teach
pricing
sign-in
Download our FREE mobile app with 1000+ tests for CBSE, JEE MAIN, AIPMT
X
Search
Topics
Want to ask us a question?
Click here
Browse Questions
Student Questions
Ad
Home
>>
EAMCET
>>
Mathematics
0
votes
Seven white balls and three black balls are randomly arranged in a row. The probability that no two black balls are placed adjacently is
\[\begin {array} {1 1} (a)\;\frac{1}{2} & \quad (b)\;\frac{7}{15} \\ (c)\;\frac{2}{15} & \quad (d)\;\frac{1}{3} \end {array}\]
jeemain
eamcet
math
2011
q56
Share
asked
Sep 23, 2013
by
meena.p
Please
log in
or
register
to add a comment.
Can you answer this question?
Do not ask me again to answer questions
Please
log in
or
register
to answer this question.
Related questions
0
votes
1
answer
Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently equals
asked
Jan 8, 2014
by
thanvigandhi_1
jeemain
math
cbse
class12
probability
bionomial-distribution
difficult
q8
0
votes
0
answers
Bag contains 2 white,1 black and 3 red balls,Bag B contains 3 white ,2 black and 4 red balls and Bag C contains 4 white ,3 black and 2 red balls.One Bag is chosen at random and 2 balls are drawn at random from that Bag.If the randomly drawn balls happen to be red and black,what is the probability that both balls come from Bag B?
asked
Apr 11, 2013
by
sreemathi.v
isc
class12
modelpaper
2011
sec-b
q12
q12-b
0
votes
1
answer
There are 7 identical black balls and 4 identical white balls. In how many ways can they be arranged in a row so that no two white balls are adjacent?
asked
Sep 5, 2013
by
rvidyagovindarajan_1
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
0
votes
1
answer
A bag contains $n$ white and $n$ black balls. Pairs of balls are drawn at random without replacement successively, until the bag is empty. If the number of ways in which each pair consists of one white and one black balls is $14,400.$ then $n=$
asked
Sep 20, 2013
by
meena.p
jeemain
eamcet
math
2011
q22
0
votes
1
answer
One urn contains two black balls (labelled $B_1,B_2$) and one white ball.A second urn contains one black ball and two white balls (labelled $W_1,W_2$).Suppose the following experiment is performed.One of the two urns is chosen at random.Next a ball is randomly chosen from the urn.Then a second ball is chosen at random from the same urn without replacing the first ball.What is the probability that two balls of opposite colour are chosen.
asked
Jul 8, 2014
by
sreemathi.v
cbse
math
class11
ch16
probability
exemplar
q12-c
sec-b
medium
0
votes
1
answer
One urn contains two black balls (labelled $B_1,B_2$) and one white ball.A second urn contains one black ball and two white balls (labelled $W_1,W_2$).Suppose the following experiment is performed.One of the two urns is chosen at random.Next a ball is randomly chosen from the urn.Then a second ball is chosen at random from the same urn without replacing the first ball.What is the probability that two black balls are chosen?
asked
Jul 8, 2014
by
sreemathi.v
cbse
math
class11
ch16
probability
exemplar
q12-b
sec-a
easy
0
votes
1
answer
A bag contains 6 white and 4 black balls. Two balls are drawn at random. The probability that they are of the same colour, is
asked
Oct 25, 2013
by
meena.p
jeemain
eamcet
math
2007
q42
Ask Question
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
AIPMT Crash Practice
5 Test Series
JEEMAIN
350+ TESTS
AIPMT
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
x
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...