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Number of 7 digit telephone numbers that...

Number of 7 digit telephone numbers that can be formed from the digits 0 , 1 , 2 , ,………………..9 , if each telephone number begins with digit 5 is

A

`6^(10)`

B

`10^(6)`

C

`10!`

D

`""^(10)C_(6)`

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Assignment Section A Objective type questions (One option is correct )
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