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Recent questions tagged permutations
ASK
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?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Sep 5, 2013
by
rvidyagovindarajan_1
1
answer
The no. of ways in which 8 different flowers can be strung to form a garland so that 4 particular flowers are not separated is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Sep 4, 2013
by
rvidyagovindarajan_1
1
answer
Different words are formed using the letters of the word 'INTEGER'. If out of these words, $x$ is number of words in which $I\:and\:N$ are never together and $y$ is no. of words which begin with I and end with R, then $\large\frac{x}{y}=?$
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Sep 3, 2013
by
rvidyagovindarajan_1
1
answer
The number of numbers that can be formed by using digits 1,1,2,2,3,3,4, so that the odd digits always occupy odd places is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Sep 3, 2013
by
rvidyagovindarajan_1
1
answer
The no. of ways in which 10 students $A_1,A_2,.....A_{10}$ can be ranked so that $A_1$ is above $A_2$ is ?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Sep 3, 2013
by
rvidyagovindarajan_1
1
answer
A coin is tossed 6 times In how many ways we can get the $3^{rd} $ head in the $5^{th}$ toss?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Sep 3, 2013
by
rvidyagovindarajan_1
1
answer
The number of 4 digit numbers divisible by 3 that can be formed by 4 different even digits (0,2,4,5,6,8) is ?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Sep 3, 2013
by
rvidyagovindarajan_1
1
answer
Ten persons are to speak in a meeting. The no. of ways in which this can be arranged if A wants to speak before B and B wants to speak before C, is ?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Aug 27, 2013
by
rvidyagovindarajan_1
1
answer
In how many ways can 3 girls and 9 boys can be seated in two vans having 3 numbered seats in the front and 4 numbered seats at the back so that the 3 girls are to be seated together in the back row?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
difficult
asked
Aug 20, 2013
by
rvidyagovindarajan_1
1
answer
The sum of the digits in unit place of all the numbers formed using 3,4,5,6 taking all at a time is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Aug 15, 2013
by
rvidyagovindarajan_1
1
answer
The number of signals that can be formed using 6 flags of different colours taking 1 or more flags at a time is ?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
difficult
asked
Aug 14, 2013
by
rvidyagovindarajan_1
1
answer
How many three digit numbers that are divisible by 3 can be formed using the digits 0,1,2,3,4,5 without repeating the digits?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
difficult
asked
Aug 14, 2013
by
rvidyagovindarajan_1
1
answer
How many 9 digit numbers can be formed from the numbers 223355888 so that the odd digits occupy even positions.
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Aug 14, 2013
by
rvidyagovindarajan_1
1
answer
The no. of 7 digit numbers that can be formed using the digits $1,2,3,2,3,3,4$ is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Aug 13, 2013
by
rvidyagovindarajan_1
1
answer
The no. of ways in which 6 persons can be seated in a circular table so that two particular persons are never together is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Aug 13, 2013
by
rvidyagovindarajan_1
1
answer
The no. of ways in which 6 men and 5 women can sit at a round table so that no two women sit together is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Aug 13, 2013
by
rvidyagovindarajan_1
1
answer
1.1! + 2.2! + 3.3! + ......... + n.n! = ?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
difficult
asked
Aug 13, 2013
by
rvidyagovindarajan_1
1
answer
What is the 7th word in the arrangement of the permuted words formed by the letters of the word 'SWISS' as per the alphabetical order as in dictionary?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Aug 12, 2013
by
rvidyagovindarajan_1
1
answer
The no. of arrangements of the letters of the word 'BANANA' in which the 2 $N^s$ do not come adjacently is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
easy
asked
Aug 12, 2013
by
rvidyagovindarajan_1
1
answer
The letters of the word 'COCHIN' are permuted and all the permutations are arranged in alphabetical order as in Dictionary. The no. of words that appear before the word 'COCHIN' is?
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Aug 12, 2013
by
rvidyagovindarajan_1
1
answer
The number of seven digit integers whose sum of the digits is ten, formed by using the digits 1, 2 and 3 only is
jeemain
math
class11
ch7
permutations-and-combinations
permutations
medium
asked
Aug 9, 2013
by
rvidyagovindarajan_1
1
answer
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