| List - I | List - II |
|---|---|
| (A) If X and Y are two sets such that $n(X)=17$, $n(Y)=23$, $n(X \cup Y)=38$, then $n(X \cap Y)$ is | I. 20 |
| (B) If $n(X)=28$, $n(Y)=32$, $n(X \cap Y)=10$, then $n(X \cup Y)$ is | II. 10 |
| (C) If $n(X)=10$, then $n(7X)$ is | III. 50 |
| (D) If $n(Y)=20$, then $n\!\left(\tfrac{Y}{2}\right)$ is | IV. 2 |
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