Question

The sum of digits of a number consisting of three digits is 12 , the middle digit is equal to half the sum of other two . If the order of digits is reversed , the number is diminished by 198 . Find the number

Answer 1

543
5+4+3=12
(5+3)/2=4
543-345=198

Answer 2

the sum is 543
5+4+3=12
(5+3)\2=4
543_345=198