If the first, second, third digits (in the hundreds, tens and ones place) of a three-digit number are taken as `m, n, p`, how do we write the number? How do we write the number got on reversing the digits?

Explanation

The first, second and third digits of a three-digit number
``
=m, n, p
``
`therefore` The three-digit number `=100 ~m+10 n+p`
On reversing the digits, the three-digit. number
``
=100 p+10 n+m
...