Explore topic-wise MCQs in Mathematics Questions and Answers.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Mathematics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Let P={10,20,30} and Q={5,10,15,20}. Which one of the following functions is one – one and not onto?

A. f={(10,5),(10,10),(10,15),(10,20)}
B. f={(10,5),(20,10),(30,15)}
C. f={(20,5),(20,10),(30,10)}
D. f={(10,5),(10,10),(20,15),(30,20)}
Answer» C. f={(20,5),(20,10),(30,10)}
Discussion
2.

A function f:R→R defined by f(x)=5x4+2 is one – one but not onto.

A. True
B. False
Answer» C.
Discussion
3.

The function f:R→R defined as f(x)=7x+4 is both one-one and onto.

A. True
B. False
Answer» B. False
Discussion
4.

A function f:R→R is defined by f(x)=5x3-8. The type of function is _________________

A. one -one
B. onto
C. many-one
D. both one-one and onto
Answer» D. both one-one and onto
Discussion
5.

A function f∶N→N is defined by f(x)=x2+12. What is the type of function here?

A. bijective
B. surjective
C. injective
D. neither surjective nor injective
Answer» D. neither surjective nor injective
Discussion
6.

The following figure represents which type of function?

A. one-one
B. onto
C. many-one
D. neither one-one nor onto
Answer» C. many-one
Discussion
7.

The following figure depicts which type of function?

A. one-one
B. onto
C. many-one
D. both one-one and onto
Answer» B. onto
Discussion