Question 939023
The sum of the digits of a three digit number is 14. The hundreds digit is four times the tens digit and twice the units digit. Find the number. 
***
let u=units digit
let t=tens digit
let h=hundredth digit
..
u+t+h=14
h=4t
t=h/4
h=2u
u=h/2
..
u+t+h=h/2+h/4+h=14
lcd:4
2h+h+4h=56
7h=56
h=8
t=h/4=2
u=h/2=4
number: 824