Sets, Relations, Functions & Logical Reasoning — Practice

Question 1

If a set A has 5 elements, the number of proper subsets of A is

Accepted Answer

B

Question 2

In a class of 60 students, 35 play cricket, 30 play football and 12 play both. The number who play neither is

Accepted Answer

A

Question 3

For any two sets A and B, (A ∪ B)' equals

Accepted Answer

B

Question 4

If n

Accepted Answer

A

Question 5

If f(x) = 2x + 3 and g(x) = x², then (g ∘ f)(2) equals

Accepted Answer

A

Question 6

Find the next term: 3, 7, 15, 31, 63, ?

Accepted Answer

B

Question 7

If TEACHER is coded as VGCEJGT, then CHILD is coded as

Accepted Answer

A

Question 8

A man walks 4 km north, then 3 km east, then 4 km south. How far is he from his starting point?

Accepted Answer

B

Question 9

Statements: All pens are books. Some books are red. Conclusions: (I) Some pens are red. (II) Some books are pens.
Which follows?

Accepted Answer

B

Question 10

Pointing to a man, a woman said, 'His mother is the only daughter of my mother.' How is the woman related to the man?

Accepted Answer

B

Question 11

In a survey of 100 people, 60 read newspaper A, 50 read B, 40 read C, 30 read both A and B, 20 read both B and C, 25 read both A and C, and 10 read all three. The number reading none is

Accepted Answer

A

Question 12

Five friends P, Q, R, S and T sit in a row facing north. Q is to the immediate right of P. R is at the extreme right. S is between P and T. Who is at the extreme left?

Accepted Answer

B

Question 13

The relation R on the set {1, 2, 3} given by R = {(1,1), (2,2), (3,3), (1,2), (2,1)} is

Accepted Answer

B

Question 14

Find the odd one out: 121, 143, 169, 187

Accepted Answer

D

Question 15

A function f from set A to set B is invertible if and only if it is

Accepted Answer

A

Practice — Sets, Relations, Functions & Logical Reasoning

Sign in to save attempts to your dashboard and track your accuracy over time

Find a verified tutor

Join a live course

Browse coaching centres

About

Categories

Support

Documentation

Get Study Tips & Updates

Download Our App

Download for iOS

Download for Android

Popular Cities