1

### IIT-JEE 1998

MCQ (More than One Correct Answer)
An n-digit number is a positive number with exactly digits. Nine hundred distinct n-digit numbers are to be formed using only the three digits 2, 5 and 7. The smallest value of n for which this is possible is
A
6
B
7
C
8
D
9

### Joint Entrance Examination

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