The elements of the set {x : x is an integer, x² : 4} can be represent as .....Z..... . Here, Z refers to

If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as

The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is

If A B and A B, then

The number of non-empty subsets of the set{1, 2, 3, 4} is

The number of elements of the power set of a set containing m elements is

If A = {x : x = n², n = 1, 2, 3}, then number of proper subsets is

If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is

Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then

Which of the following is/are empty set? 
A = {x : x2 + x + 1 = 0 and x Î Z}   B = {x : x is a prime number and 19 < x < 23}

The set {x : x⁴ = 1 and x R} is .....X.... set. Here, X refers to

The universal set for the sets   
A = {x : x² – 5x + 6 = 0} and   
B = {x : x² – 3x + 2 = 0} having least number of elements is

If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0}, 

If A = (–3, 5) and  B = [–7, 9], then

Two finite sets have m and n elements, respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The value of m and n respectively are

Combine terms: 12a + 26b  - 4b – 16a .

The average of first 50 natural numbers is ………… .

60 Times of 8 Equals to

Consider the sets

If X = {4n – 3n – 1: n Î N} and Y = {9(n – 1): n Î N}; where N is the set of natural numbers, then X È Y is equal to

Consider the following statements :
1. The set of all irrational numbers between √2 and √5 is an infinite set .
2. The set of all odd integers less than 100 is a finite set .
Which of the statements given above is/are correct ?

What is the Next Prime Number after 7 ?

If A and B are two given sets, then A (A B)^C is equal to

121 Divided by 11 is

Let X be the universal set for sets A and B, if n(A) = 200, n(B) = 300 and n = 100, then n is equal to 300 provided n(X) is equal to

Let A = {x : x is a prime factor of 240} B = {x : x is the sum of any two prime factors of 240}, then

In a college  part girls and  part boys attended a social camp. How many parts in the collegs students attended the camp ?

The sum of two number is 16 and their difference is 2. What is the product to both numbers ?

What are the positive factors of 160 .

What is the value of (51 + 52 + 53 ........100) ?

What is the sum of all natural numbers that come in the between 1 to 100, which a multiple of 7 ?

What is the unit digit of 279 + 167 × 342 ?

Which of the given values is completely divisible by 15 ?

For which value of M, the divisor 34M fully divisible by 12 ?

If 432p1 is completely divisiable 34M fully divisiable by 12 ?

Which is the smallest number to be added to 100, so that the resulting number is completely divisible by 6 ?

When a number is divided by 80, the remainded is 20. When the same number is divided by 16, what will be the remainder ?

Which of the fractions is the largest among   and  ?

What is the two digits largest prime number ?

What is the sum of first 15 odd natural numbers ?

What will be the sum of all natural numbers from 75 to 97 ?

If the quotient  of is positive, which of the following would be true ?

If the last two digits of a three-digit number is multiple of 6, then the original integer will always be divisible by ?

Find three consecutive numbers, in which sum of the two times of the first, three of second and four time of the third number os 191 ?

An office has 108 table and 132 chairs. If  tables and  of the chairs are broken, then how many people can work in the office, if required 1 table and 1 chair ?

If the sum of two numbers is a and the product is b, then what will be the sum of their reciprocal ?