Question

write the samllest three digit number which does not change if the digits are writter reverse order.

Answer 1

1. 101
Changing digits :- 101
2. 111
Changing digits :- 111
3. 121
Changing digits :- 121

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Answer 2

Let smallest three digit number in the form of x + 10y + 100z { e.g zyx is this number }

A/C to question ,
if digits are wrritten in reverse order then number doesn't change .

e.g z + 10y + 100x = x + 10y + 100z
99x = 99z
x = z

but we know, smallest number of three digit number = 100
hence, if we take 101
then, condition ; x = z Satisfy .
1 + 0.10 + 100.1 = 101
1 = 1
so, 101 is smallest three digit number which doesn't change if the digits are written in reverse order .