Posted by **Anonymous** on Friday, October 8, 2010 at 8:56am.

I am a number between 75 and 150

My tens digit is three times my ones digit

The sum of my digits is 5

My hundreds digit and my ones digit are the same

- 4th grade -
**Dr Russ**, Friday, October 8, 2010 at 10:04am
From the information you can generate three equations

Let the number be

abc

My tens digit is three times my ones digit

thus b=3c

The sum of my digits is 5

a+b+c=5

My hundreds digit and my ones digit are the same

a=c

now solve for a, b and c

- 4th grade -
**Jen**, Friday, October 8, 2010 at 10:41am
I think that's too hard for him considering he's in fourth grade...

Ok, so you have three digits

___ ___ ___

They must add up to 5..

Since you know the tens digit is three times the ones digit and all of your digits must be low to add up to 5, the tens digit must be a 3. go from there.

- 4th grade -
**Mercedes-Lynn**, Wednesday, October 20, 2010 at 9:23pm
131

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