There are 6 different cookies on a plate. Aiden will choose 2 of these cookies to pack in his lunch. How many different pairs of 2 cookies can he choose from the 6?
- A12
- B15
- C30
- D36
Show the answer
Correct answer: B
Create a list of the possible pairs. Let the cookies be named A, B, C, D, E, and F.
AB, AC, AD, AE, AF
BC, BD, BE, BF
CD, CE, CF
DE, DF
EF
There are a total of 15 possible pairs of cookies that Aiden can choose.