The number of 5 digit telephone numbers having at least one of their digits repeated is [Pb. CET 2000]

The number of 5 digit telephone numbers having at least one of their d

1.	The number of 5 digit telephone numbers having at least one of their digits repeated is [Pb. CET 2000]
A.	90000
B.	100000
C.	30240
D.	69760
Answer» E.

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The number of 5 digit telephone numbers having at least one of their digits repeated is [Pb. CET 2000]

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