contestada

Find the four digit number in which the first digit is one fourth of the last digit, the second digit is 6 times the first digit, and the third digit is the second digit plus 3

Respuesta :

abcd, 4a = d, b=6a, c = b+3...b can only be 6, which means a can only be 1, which means d can only be 4 and c then must be 9
So 1694 is the number.