I AM A FOUR-DIGIT EVEN NUMBER. THE SUM OF MY DIGITS IS 15. THE ONES DIGIT IS ONE MORE THAN TENS DIGIT,WICH IS ONE MORE THAN THAN THE THOUSANDS DIGIT. THE HUNDREDS DIGIT IS THE SUM OF THE ONES AND THOUSANDS DIGITS. THE TENS DIGIT IS 3. WHAT AM I ?

1 answer

Let ones=x
tens=y
hundreds=z
thousands=a

a+x+y+z=15
x=1+y
y=a+1
z=x+a
y=3

x=1+(3)
x=4

(3)=a+1
a=2

z=(4)+(2)
z=6

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