Mathematics - guessing numbers There is a four digit number which satisfies the following conditions: 1. The sum of two times and two in one digit is less than half in ten digit; 2. The new four digit number is the same as the original four digit number by the simultaneous transposition of the number on the one digit and the number on the thousand digit, the number on the ten digit and the number on the hundred digit; 3. The sum of one digit and ten digit is 10 Find this four digit number

Mathematics - guessing numbers There is a four digit number which satisfies the following conditions: 1. The sum of two times and two in one digit is less than half in ten digit; 2. The new four digit number is the same as the original four digit number by the simultaneous transposition of the number on the one digit and the number on the thousand digit, the number on the ten digit and the number on the hundred digit; 3. The sum of one digit and ten digit is 10 Find this four digit number

Set 4 digits as ABCD
1.2 * D + 244 / 5 C can only be 9 d = 1
A = 1, B = 9