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MHT CET202015 Oct 2020Evening ShiftMathematicsProbabilityActual

If n(X)=700, n(A)=200, n(B)=300, n(A B)=100 , where X is universal set and A and B are subsets of X , then n ( A ^ B ^ )=

Options

  1. A300
  2. B400
  3. C340
  4. D240

Correct answer

A. 300

Step-by-step solution

n ( A B )= n ( A B )= n ( u )- n ( A B )= n ( u )- n ( A )+ n ( B )- n ( A B ) =700- 200+300-100 =300

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