Question

write the smallest 3 digit number which does not change if the digit are written in the reverse order​

Answer 1

The smallest number is zero. Since it can't be used in hundreds place and in order to keep the reverse same it can't be used in the units place too. So, the hundreds and units place will have 1 and the tens place can have zero.

Answer 2

Question= write the smallest 3 digit number which does not change if the digit are written in the reverse order

Solution:

The required number is 101.