Question

The smallest three digit number having three distinct digits is
(a) 123
(b) 101
(c) 102
(d) 201

Answer 1

(c) 102

The three distinct smallest digits are 0, 1 and 2. To form a smallest number using these digits, we need to arrange them in ascending order, but by this we get 012, which results in a two-digit number. So, the smallest three-digit number having distinct digits is 102.