Posted by **lili** on Tuesday, January 10, 2012 at 7:13pm.

I am a 3 digit odd umber. my tens digit is one less than my hundreds digit but two more than my ones digit. The sum of my digits is 20. who am I?

- math -
**Reiny**, Tuesday, January 10, 2012 at 7:35pm
let the unit digit be x

tens digit is x+2

hundreds digit is x+3

x+3 + x+2 + x = 20

3x = 15

x = 5

number is 875

- math -
**PsyDAG**, Tuesday, January 10, 2012 at 7:36pm
Let x = tens digit, the x + 1 = hundreds and x - 2 = ones

3x - 1 = 20

3x = 21

x = 7

x + 1 = ?

x -2 = ?

## Answer This Question

## Related Questions

- MATH - What is my number if the hundreds digit is less than the tens digit and ...
- Math - The mystery number's tens digit is less than the ones digit. The tens ...
- 4th grade math - Find the mystery number. It is a 4 digit odd number. All the ...
- Math - My hundreds digit is the last odd number. Five less than my hundreds ...
- math - find the mystery number, it is a 4 digit odd number, all the digits are ...
- Algebra - Math HW HELP! - 1) It is a five-digit whole number. 2) It is a ...
- algebra - what three digit number is less than 300 and the ones digit is 4 times...
- Math - What is the three digit mystery number? Clues: It is less than 300, the ...
- Math - i am a 4 digit number between 3000 and 4000.My ones digit is twice my ...
- math - Who am I? I am a 4-digit number wih no two digits the same. My ones ...

More Related Questions