Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A subset P is selected from a set S containing n elements and elements of P are then replaced in S and another subset Q is selected. The no. of ways can this be done. Such that P ∩ ∩ Q = φ φ
Text Solution
Verified by ExpertsThe correct answer is:
C
For each element in S, there are 3 choices.
Putting in P only
Putting in Q only
Not putting in P or Q.
∴ ∴ No. of choices of n elements = 3 n .
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