JEE MATHEMATICS MCQ: SET THEORY

1 Easy

1 of 1

Application +4 | -1

Let

\mathcal{U}

be the universal set for sets A and B such that

n\left( A \right) = 200,n\left( B \right) = 300

and

n\left( {A \cap B} \right) = 100.

Then,

n\left( {A' \cap B'} \right)

is equal to 300, provided that

n\left( \mathcal{U} \right)

is equal to

View answer and explanation

Correct option: B

700

The correct answer is B (700) because it is found by using De Morgan's law and the formula for the number of elements in the union of two sets.

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