SOLUTION: I am a number between 100 and 200 the sum o my digits is 3 my ones digits is two times my hundreds digit

Hi,

number between 100 and 200 with the sum of it's digits =  3

 h + t + u = 3

ones digits is two times the hundreds digit

 1 + t + 2 = 3   t therefore is 0

Number is 103