SOLUTION: I'm thinking of a four digit number in which: * the sum of the first two digits is 15 * the sum of the last two digits is 15 * the sum of the middle two digits is 17 * the thir

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Question 898310: I'm thinking of a four digit number in which:
* the sum of the first two digits is 15
* the sum of the last two digits is 15
* the sum of the middle two digits is 17
* the third digit is larger than the second
* the last digit is an even number
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
a+b=15,
means 69, 78, 96,or 87
c+d=15,
means 69, 78, 96,or 87
b+c=17,
means 89 or 89
c>b,
means 89
d is even
a89d
7896