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Source: GMAT Test Prep

Each employee of compay Z is part of Division X oy Y but not both. Each division has some part time employees. Is the ratio of full time employees to part time employees greater for division X than it is for Company Z?

1)The ratio of full time employees is less for Division Y than it is for Company Z
2)More than half the full time employees of Company Z are members of Division X, and more than half the part time employees of Company Z are members of Division Y

a) 1 alone is sufficient
b) 2 alone is sufficient
c) both together are sufficient
d) each alone is sufficient
e) even together they arent sufficient

z=x+y.
(F/P)x > (F/P)z??? (Is the ratio of full time employees to part time employees greater for division X than it is for Company Z)
B) X full Time: > Z full time/2
also X Part Time: < Z part time/2
Thus ratio (F/P)x > (F/P)z...Sufficient
A)Y < Z (ratio)
Thus X<Z
IMO D