If x,y and z are positive integers with xy=18,xz=3 and yz = 6, what is the value of x+y+z?
Answer Choices
A. 6
B. 10
C. 25
D. 11
E. 8
If x,y and z are positive integers with xy=18,xz=3 and yz = 6, what is the value of x+y+z?
Answer Choices
A. 6
B. 10
C. 25
D. 11
E. 8