How many 3-digit odd numbers can be formed by using the digits 1, 2, 3, 4, 5, 6 when (i) the
Channel: Doubtnut
Date: 2020-01-03

How many 3-digit odd numbers can be formed by using the digits 1, 2, 3, 4, 5, 6 when (i) the repetition of digits is not allowed? (ii) the repetition of digits is allowed?