Manipal MET2023MathematicsSets and Relations
Let A= 1,2,3,4,5,6,7 and B= 3,6,7,9 . Then, the number of elements in the set C A_i C B is
Options
- A112
- B120
- C108
- D96
Correct answer
A. 112
Step-by-step solution
A= 1,2,3,4,5,6,7 and B= 3,6,7,9 . Total subset of A=2^7=128C B= , when set C contains the elements 1,2 , 4,5 . S= C A ; C B Total -(C B= )=128-2^4=112