Mathematics · JEE

Easy Union, intersection and complement of sets and their algebraic properties MCQs for JEE

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Part of Sets, Relations and Functions in JEE Main Mathematics.

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Q1MathsUnit 1: Sets, Relations and Functions

\boldsymbol{X}=\left\{4^{n}-3 n-1: n \in N\right\}

and

\boldsymbol{Y}=\{\mathbf{9}(\boldsymbol{n}-\mathbf{1}): \boldsymbol{n} \in \boldsymbol{N}\},

where

\mathrm{N}

is the set of natural numbers, then

\boldsymbol{X} \cup \boldsymbol{Y}

is equal to:

Q2MathsUnit 1: Sets, Relations and Functions

Let

n(\cup)=700, n(A)=400, n(B)=300, n(A \cap

\mathrm{B})=300 .

Then

\left(\mathrm{A}^{\prime} \cap \mathrm{B}^{\prime}\right)=

Q3MathsUnit 1: Sets, Relations and Functions

n(U)=50, n(A)=20, n\left((A \cup B)^{\prime}\right)=18

then

n(B-A)

Q4MathsUnit 1: Sets, Relations and Functions

At a school,

20 \%

of the students are seniors. If all of the seniors attended the school play, and

60 \%

of all the students attended the play, then what percent of the non-seniors attended the play?

Q5MathsUnit 1: Sets, Relations and Functions

In a class, 20 opted for Physics, 17 for Maths, 5 for both and 10 for other subjects. The class contains how many students?

Q6MathsUnit 1: Sets, Relations and Functions

Let

A_{1}, A_{2}

and

A_{3}

be subsets of a set

X

Which one of the following is correct?

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