Sum of factors of 12 is ?

Convert 0.81 into fraction ?

Which of the following numbers is irrational ?

The last three-digits of the multiplication 12345 x 54321will be

What is the remainder when 17³ is divided by 5 ?

If a number is divisible by both 8 and 9, then it must be divisible by ?

What is the area of a triangle with base 5 meters and height 10 meters ?

How many factors does 36 have ?

Convert 0.04 into fraction ?

Convert 0.04 into fraction ?

Which is greater ?

Convert 0.125 into fraction ?

Convert 0.666… into fraction ?

A: B: C is in the ratio of 3: 2: 5. How much money will C get out of Rs 1260 ?

If January 1, 1996, was Monday, what day of the week was January 1, 1997 ?

Convert 0.333… into fraction ?

23% of 6783 + 57% of 8431 = ?

With a two digit prime number, if 18 is added, we get another prime number with digits reversed. How many such numbers are possible ?

 Which is smallest ?

What is (104 times 106) ?

What is (48 times 52) ?

Two numbers are co-prime if their HCF is ?

Which of the following is a prime number ?

If the expression (px³-8x²-qx + 1) is completely divisible by the expression ?(3x² – 4x + 1), then what will be the value of p and q respectively?

The greatest number which will divide 116, 221, 356 leaving the same remainder in each case is

What number has to be added to 345670 in order to make it divisible by 6?

The least number which when divided by 35 leaves a remainder 25, when divided by 45 leaves the remainder 35 and when divided by 55 leaves 45 is

The last digit of 2137⁷⁵³ is

In order that the number 1 y 3 y 6 be divisible by 11, the digit y should be

What is the difference in the place value of 5 in the numeral 754853 ?

The number 311311311311311311311 is

If the product 4864 x 9 P 2 is divisible by 12, the value of P is

(xⁿ – aⁿ) is completely divisible by (x + a), when

Which of the following statements are true:
(i) The rational number lies to the left of zero on the number line.
(ii) The rational numberlies to the right of zero on the number line.
(iii) The rational numbers  -and are on the opposite side of zero on the number line.
(iv) The rational numbers and are on the opposite side of zero on the number line.

Find the digit at the unit’s place of
(377)⁵⁹ x (793)⁸⁷ x (578)¹²⁹ x (99)⁹⁹

If N is the sum of first 13,986 prime numbers, then N is always divisible by

If two numbers when divided by a certain divisor give remainder 35 and 30 respectively and when their sum is divided by the same divisor, the remainder is 20, then the divisor is

Find the least number which when divided by 12, leaves a remainder 7, when divided by 15, leaves a remainder 10 and when divided by 16, leaves a remainder 11

A number is interesting if on adding the sum of the digits of the number and the product of the digits of the number, the result is equal to the number. What fraction of numbers between 10 and 100 (both 10 and 100 included) is/are interesting ?

 If x + y + z = 1 and x, y, z are positive real numbers, then the least value of is

The last digit in (25_)³² and (25_)³³ both is 6. The missing digit is:

At a college football game, of the seats in the lower deck of the stadium were sold. If  of all the seating in the stadium is located in the lower deck, and if of all the seats in the stadium were sold, then what fraction of the unsold seats in the stadium was in the lower deck ?

How many numbers are there between 200 and 800 which are divisible by both 5 and 7 ?

A number which when divided by 32 leaves a remainder of 29. If this number is divided by 8 the remainder will be.

A six digit number which is consisting of only one digits either 1, 2, 3, 4, 5, 6, 7, 8 or 9, e.g., 111111, 222222. etc. This number is always divisible by:

The sum and number of even factors of 2450.

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

If A = {x : x is a multiple of 4 and x N} and B = {x : x is a multiple of 6 and x N}, then A B consists of all multiples of

In a group of 400 people, 250 can speak Hindi and 200 can speak English. Then, people who can speak both Hindi and English are

20 teachers of a school either teach Mathematics or Physics. 12 of them teach Mathematics while 4 teach both the subjects. The number of teacher teaching Physics only, is

In a class of 100 students, 70 have taken Science, 60 have taken Mathematics, 40 have taken both Science and Mathematics. The number of students who have not taken Science or Mathematics or both Science and Mathematics, is equal to

A market research group conducted a survey of 1000 consumers and reported that 720 consumers like product A and 450 consumers like the product B, then least number that must have like both products, is

If there are three athletic teams in a school, 21 are in the basketball team, 26 in hockey team and 29 in the football team. 14 play hockey and basketball, 15 play hockey and football, 12 play football and basketball and 8 play all the games. The total number of members is

A college awarded 38 medals in football, 15 in basketball and 20 in cricket. If these medals went to a total of 58 men and only three men got medals in all the three sports, then number of men who received meal in exactly two of the three sports is

In the class of 175 students, the following data shows the number of students opting one or more subjects. Mathematics 100; Physics 70; Chemistry 40; Mathematics and Physics 30; Mathematics and Chemistry 28; Physics and Chemistry 23; Mathematics, Physics and Chemistry 18. Then, number of students opted Mathematics alone is

In a city, 20% of the population travles by car, 50% travles by bus and 10% travles by both car and bus. Then, person travelling by car or bus, is

Universal set,
U = {x | x⁵ – 6x⁴ + 11x³ – 6 x 2 = 0}
A = {x | x² – 5x + 6 = 0}
B = {x | x² – 3x + 2 = 0}
What is the value of (A B)?

If P(A) denotes the power set of A and A is the void set, then what is the number of elements in P{P{P{P(A)}}}?

If A = {1, 2, 3, 4, 5}, b = {x : x2 – 5x + 6 = 0} and C = {x : x2 = 4 or x = 1}, then

In a group of 50 people, 35 speak Hindi, 25 speak both English and Hindi and all the people speak atleast one of two languages. The number of people who speak 'English', 'English but not Hindi' are respectively

If P = {1, 2}, then P × P × P = {(1, 1, 1), (1, 1, 2), (1, 2, 1), (2, 1, 2), (2, 2, 1), (2, 2, 2)}. The ordered triplet missing in P × P × P are