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Answered on 19/11/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

Solve: 5! ?

Eti G.

Math Magician

120

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Answered on 28/11/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

How many words can be formed by using all letters of the word BIHAR ?

Tapas Bhattacharya

Tutor

Here, all the letters are different and there are 5 letters. So, the number of words = 5! = 120.

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Answered on 04/12/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7, 9 which are divisible by 5 and...

Tapas Bhattacharya

Tutor

For all the numbers the last digit must be 5. So, the 1st, and the 2nd places are occupied by 2, 3, 6,...

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Answered on 01/12/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

What is value of (100) P (2)?

Sreedevi A.

Entusiastic Teacher

(100)! / 98!

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Answered on 01/12/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

Find out the number of ways in which 6 rings of different types can be worn in 3 fingers?

Anil Kumar

CAT Coaching Classes

Each ring has a choice of 3 fingers, so no of ways =3^6. There are no restrictions.

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Answered on 02/12/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

What is the difference between permutation and combination?

Sreedevi A.

Entusiastic Teacher

Permutation involves selection and arrangement where as Combination involves only selection.

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Answered on 03/12/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

Solve: (9) P (3)?

Sarvajeet Kumar

An Experienced Trainer

504.

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Asked on 05/11/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?

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Asked on 05/11/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they...

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Asked on 05/11/2016 Tuition/Class XI-XII Tuition (PUC) Tuition/Class XI-XII Tuition (PUC)/Mathematics Permutation and Combinations

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least...

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