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Numbers and logic

Leslie Chaim
Ranch Hand
Posts: 336
What is a 4 digit number in which the sum of the 3rd and 4th digits equals the sum of the 1st and 2nd digits, the 2nd digit is half the 1st, and the 4th is half the 2nd? (the sum of all digits is 12.)
Who knows there maybe someone who would solve this mathematically :roll: :roll:
Cheers,
Leslie

Joel McNary
Bartender
Posts: 1840
Who knows there maybe someone who would solve this mathematically
That's me

[ September 23, 2003: Message edited by: Joel McNary ]

Dan Lastoria
Ranch Hand
Posts: 57
a+b+c+d = 12
c+d = a+b
b = a/2
d = b/2
2a+2b=12
4b+2b=12
6b=12
b=2
2=a/2
a=4
d=2/2
d=1
2+4+1+c=12
c=5
4251

Dan Lastoria
Ranch Hand
Posts: 57