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If 7!/n!=7 then the value of n is:...

If 7!/n!=7 then the value of n is:

A

8

B

720

C

7

D

6

Text Solution

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The correct Answer is:
D
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PREMIERS PUBLISHERS-COMBINATORICS AND MATHEMATICAL INDUCTION-PROBLEMS FOR PRACTICE (Choose the correct option for the following)
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  3. If 7!/n!=7 then the value of n is:

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  4. If n! + (n-1)! =144, then the value of n is :

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  6. ""^(7)C(3) + ""^(7)C(2)=""^(x)C(y) then x and y are:

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