General Strategy for GR8767 #25
Posted: Tue Mar 12, 2013 12:06 am
http://www.wmich.edu/mathclub/files/GR8767.pdf
How do I solve number 25?
The question is:
x and y are positive integers such that
Which of the following must also be divisible by 11?
A: 4x + 6y
B: x + y + 5
C: 9x + 4y
D: 4x - 9y
E: x + y - 1
How do I solve number 25?
The question is:
x and y are positive integers such that
Which of the following must also be divisible by 11?
A: 4x + 6y
B: x + y + 5
C: 9x + 4y
D: 4x - 9y
E: x + y - 1