Thursday
December 18, 2014

Homework Help: A fun one-math

Posted by manny on Monday, August 20, 2007 at 8:38pm.

i am a four -digit number with no two digits the same. my ones digit is twice my thousands digit and one less than my tens digit. my hundreds digit is the difference between my tens digit and my thousands digit. my thousands digit is an odd number less than 6.
what number am i?

This is best posted in the riddle section.

http://www.jiskha.com/net_riddle/

i think i have posted it but i can't see it on the site
???

3426

let the number be abcd

given:
d=2a
d=c-1 ------>c=d+1
b=c-a
a<6 and odd, so a = 1,3,or5
no two digits are the same

rule out a=5 because then d=10, not possible

let a=1, then
d=2
c=3
b=2, but that would be two digits the same

let a=3, then d=6
c=7
b=4
the number is 3476



thanks

3476 makes sense!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - Who am I? I am a 4-digit number wih no two digits the same. My ones ...
4th grade math - I'm a 4 digit number with no 2 digits the same. My ones digit ...
4th grade math - Find the mystery number. It is a 4 digit odd number. All the ...
math - i have a six digit question my 100 thousands is one less than my ones ...
math - find the mystery number, it is a 4 digit odd number, all the digits are ...
Math - i am a 4 digit number between 3000 and 4000.My ones digit is twice my ...
Math - Iam a 5digit number my tens digit is the sum of my hundreds digits and ...
math - *The number has 8 digits, none of the digits are the same. *It is evenly ...
5th grade math - i am a number greater than 40,000 and less than 60,000 my ones ...
math - The number has 8 digits none of the digits are the same 2. It is enemy ...

Search
Members