

InterviewSolution
Saved Bookmarks
1. |
If X and Y are two sets such that `n (X)=17, n (Y)= 23` and `n (Xuu Y)= 38` find `n (X nnY)` . |
Answer» `n(X uu Y)=n(X)+n(Y)-n(XnnY)` `38=17+23-n(XnnY)` `n(XnnY)=40-38=2`. |
|