How many total number of ways in which n distinct objects can be put into two different boxes is Pick: A) n2 B) 2n C) 2n D) 3n E) None of these
Let the two boxes be B1 and B2. There are two choices for each of the n objects. So, the total number of ways is   2 × 2 ×.....× 2 (n times ) = 2n   Answer 2n
<result>B</result>
How many total number of ways in which n distinct objects can be put into two different boxes is