How many 3-digit numbers can be formed from the four
integers 0, 1, 2, 3, if;
a) no digit is repeated,
b) Repetition is allowed,
c) The number is even and repetition is not allowed,
d) The number is odd and repetition is not allowed.
integers 0, 1, 2, 3, if;
a) no digit is repeated,
b) Repetition is allowed,
c) The number is even and repetition is not allowed,
d) The number is odd and repetition is not allowed.