For any number Z, Z* is defined as the greatest positive even integer less than or equal to y. What is the value of 6.32 – 6.32*?  Choices:
A) 1.5
B) 0.5
C) 0.32
D) 0.25
E) 6.32

Rationale: since z * is defined as the greatest positive even integer less than or equal to z , then 6.32 * = 6 ( the greatest positive even integer less than or equal to 6.32 is 6 ) . hence , 6.32 – 6.32 * = 6.32 - 6 = 0.32 answer : c .
Answer: C