1.

Let P and Q be two finite sets such that n(P – Q) = 20, n(P U Q) =95, n(P ∩ Q) =35, then n(Q – P) is

Answer»

Let P and Q be two finite sets such that n(P – Q) = 20, n(P U Q) =95, n(P ∩ Q) =35, then n(Q – P) is




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