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x, y, a, and b are positive integers. When x is divided by [#permalink]
21 Jun 2008, 12:04

x, y, a, and b are positive integers. When x is divided by y, the remainder is 6. When a is divided by b, the remainder is 9. Which of the following is NOT a possible value for y + b? 24 21 20 17 15

Re: MGMAT Problem 3. [#permalink]
21 Jun 2008, 12:24

ans is E, 15. a/b gives reminder =9, means b is greater than 9. x/y gives reminder=6, means y is greater than 6. So Y+B should be greater than 9+6=15. Let me know if I am correct.