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Permutations Distinct Objects Free Doubts and Solutions

CBSE - XI Science - Mathematics - Permutations and Combinations

6th sum 

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Asked by lovemaan5500 2nd February 2019, 8:29 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

31st sum plz

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Asked by lovemaan5500 2nd February 2019, 8:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

In how many ways can 12 people sit around a table so that all shall not have the same neighbors in any two arrangements?

Asked by yogeshkumar pathak 31st January 2019, 11:56 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

Q) Total number of permutation of "K" different things in a row taken not more than "r " at a time (each thing may be repeated any number of times ) is equal to
left parenthesis A right parenthesis k to the power of r minus 1 space space space left parenthesis B right parenthesis k to the power of r space space space space left parenthesis C right parenthesis fraction numerator k to the power of r minus 1 over denominator k minus 1 end fraction space space space space left parenthesis D right parenthesis fraction numerator k left parenthesis k to the power of r minus 1 right parenthesis over denominator k minus 1 end fraction

Asked by araima2001 6th April 2017, 6:34 AM
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CBSE - XI Science - Mathematics - Permutations and Combinations

can you tell those numbers which are lying between 200 and 500 and divisible by 3 if digits are repeated?

Asked by aashu.60 1st July 2015, 9:11 AM
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CBSE - XI Science - Mathematics - Permutations and Combinations

If space straight P presuperscript 2 straight n plus 1 end presuperscript subscript straight n minus 1 end subscript colon straight P presuperscript 2 straight n minus 1 end presuperscript subscript straight n equals 3 colon 5 comma space then space find space straight n.

Asked by Topperlearning User 2nd June 2015, 1:59 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

Twelve students compete in a race. In how many ways can the first three places be taken?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

In how many ways 6 ladies can be seated on 2 chairs?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

In how many ways, the letters of the word `NUMBER’ can be arranged?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

Find the number of permutations of English vowels taking three at a time.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

In how many ways 6 children can stand in a queue?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

Evaluate , when n = 10 and r = 4.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

If , then find the value of n.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

Evaluate:

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

What is the meaning of n! 

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Mathematics - Permutations and Combinations

What does permutation means?

Asked by Dhruva Vinay 10th May 2014, 4:49 PM
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