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
150
40
55
75
If n (P) = 5, n(Q) = 12 and n(PUQ) = 14 then n(P∩Q) =
If P = {x : x ϵ Z, -7 < x < 8} and Q = R then the set n(P x Q) is