How many 2 digit numbers can be formed using the digits... | Reasoning Class 4

Reasoning Class 4 Possible Combinations

Asked by KRITARTH AGARWAL · DALMIA VIDYA MANDIR, RAJGANGPUR

How many 2 digit numbers can be formed using the digits 1,2,3 if repetition of digits is not allowed?

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A 3
B 6
C 9
D 12