Math Problem
In category General on 06 Apr 2005 @ 04:55 pm
Ok folks I have a math problem I need help with. I need to list my reasoning for each step. I need to guess a number based on the following clues:
It's a 3 digit whole number
One digit is a 3
It is an even number
It is greater than 499
The sum of it's digits is 15
Each digit is different
It is divisible by 6
It's hundreds digit is greater than it's ones digit
It is less than 900
Only one of it's digits is odd
Let me know if you can help! Thanks!
It's a 3 digit whole number
One digit is a 3
It is an even number
It is greater than 499
The sum of it's digits is 15
Each digit is different
It is divisible by 6
It's hundreds digit is greater than it's ones digit
It is less than 900
Only one of it's digits is odd
Let me know if you can help! Thanks!
3 is the middle digit. (3 at the start is less than 499 and 3 at the end is odd).
#3#
The other 2 digits add up to 12 (15 - 3), and if the final number is even, both those 2 have to be even. The first digit is between 5 and 8.
834
or
636
All the numbers are different so 636 is wrong.
834 is the correct answer. Let me know if any steps were not explained properly.
Maz on 07 Apr 2005 @ 08:56 pm