How many subset of the Fruit set of Banana, Apple, Orange, Grape and Lemon does not contain Apple?
Pick.
A) 17
B) 16
C) 15
D) 14
E) 18
This is a combination solution   Since we have 4 different kinds of fruits other than Apple we can take any fruit from the set of 4 to make a subset.   4C1 +4C2 + 4C3 + 4C4 = 15   Plus the one set that is null that is the Set having no element in it which is 4C0 =1   = 15 + 1= 
<gadget id="calculator">15 + 1</gadget>
<output>16</output>
16   16= 16
<result>B</result>
How many subset of the Fruit set of Banana, Apple, Orange, Grape and Lemon does not contain Apple?