Question
Write all possible 3-digit numbers using the digits $6,0,4$, when
(i) repetition of digits is not allowed.
(ii) repetition of digits is allowed.
(i) repetition of digits is not allowed.
(ii) repetition of digits is allowed.
✓
Answer
(i) $640,460,604,406$
(ii) $400,406,460,466,444,404,440,446,464,600,604,640,644,646,664,606,660,666$
(ii) $400,406,460,466,444,404,440,446,464,600,604,640,644,646,664,606,660,666$
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