Sets, Relations and Functions - Arithmetic Aptitude Questions and Answers

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If R = {(1,1),(2,3),(4,5)}, then domain of the function is ?

A.

Dom R {1,3,5}

B.

Dom R = {I,2,4}

C.

Dom R {1,1,4,5}

D.

Dom R = {2,3,4,5}

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In lst quadrant ?

A.

X < 0, Y > 0

B.

X > 0, Y < 0

C.

X > 0, Y > 0

D.

X < 0, Y < 0

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The union of sets A and B is expressed as ?

A.

A/B

B.

AUB

C.

AxB

D.

A-B

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(A’)’ = ?

A.

A

B.

U

C.

A’

D.

U-A

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The set of intelligent students in a class is.

A.

A null set

B.

A finite set

C.

A singleton set

D.

Not a well defined collection

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If A is any set, then

A.

A ∩ A' = U

B.

A ∪ A' = U

C.

A ∪ A' = ø

D.

None of these

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If the set has p elements, b has q elements, the no of elements in A x B is

A.

p²

B.

pq

C.

p + q

D.

p + q + 1

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A survey showed that 63 % of the Americans like cheese whereas 76 % like apples. If x % of Americans like both cheese and apples, then find the range of x?

A.

0 ≤ x ≤ 23 %

B.

4 ≤ x ≤ 35 %

C.

0 ≤ x ≤ 39 %

D.

6 ≤ x ≤ 33 %

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If A and B are any two sets, then A ∪ (A ∩ B) is equal to.

A.

A

B.

B

C.

Ac

D.

Bc