For any number y, y* is defined as the greatest positive even integer less than or equal to y. What is the value of 7.2 – 7.2*?	Choose the correct choice from the following:
A) 1.2	B) 0.2	C) 1.8	D) 2.2	E) 4.0

Rationale: since y * is defined as the greatest positive even integer less than or equal to y , then 7.2 * = 6 ( the greatest positive even integer less than or equal to 7.2 is 6 ) . hence , 7.2 – 7.2 * = 7.2 - 6 = 1.2 answer : a .
Answer: A