500
HEB carries different types of apples and oranges. There are twice as many types of apples as oranges. Oranges have 4 different types which include Navel, Valencia, Moro, and Cara Cara. John bought 6 different types of apples at HEB. What fractional amount of apple types would NOT be equivalent to John's purchases?
A. 3/4
B. 12/16
C. 18/24
D. 1/4
What is D. 1/4