( - 3 / 2) + (5 / 4) – (- 7 / 4)
1.-2
2.2
3.7/4
4.3 / 2
Posted Date:-2021-11-13 10:04:38
55 cows can graze a field in 16 days. How many cows will graze the same field in 10 days?
1.84 cows
2.34 cows
3.88 cows
4.44 cows
Posted Date:-2021-11-13 10:02:43
A diagonal matrix in which all diagonal elements are equal is called
1.Unit matrix
2.Null matrix
3.Scalar matrix
4.Triangular matrix
Posted Date:-2021-11-13 10:11:46
A private taxi charges a fare of Rs. 260 for a journey of 200 km. How much would it travel for Rs 279.50?
1.215
2.363.35
3.186
4.240
Posted Date:-2021-11-13 10:20:21
A relation R ={(1,1), (1,2)}ON a ={1,2,3}. A minimum number of elements required in R so that the enlarged relation becomes an equilance relationis1.{(2,2), (3,3)}
2.{(2,1) , (3,1), (3,3)}
3.{(2,2), (2,1), }
4.{(2,2), (3,3), (2,1)}
Posted Date:-2021-11-13 10:01:56
Cube root of 5 x cube root of 7 is
1.Cube root of 35
2.Cube root of 12
3.Cube root of 7 / 5
4.Cube root of 2
Posted Date:-2021-11-13 09:55:17
Equation of line joining (1,2) and (3,6) using determinants is
1.y = 3x
2.y =2x
3.x = 2y
4.x =3x
Posted Date:-2021-11-13 10:13:35
Find the 5th term in the expansion ( 1 -2x )-1
1.15x3
2.16x4
3.17x5
4.14x6
Posted Date:-2021-11-13 10:07:50
Find the compound interest for Rs 10000 for 2 years at 5% per annum the interest being compounded annually.
1.Rs 1000
2.Rs 1025
3.Rs 1050
4.Rs 1100
Posted Date:-2021-11-13 09:57:15
Find the domain of the function y = f(x) which is defined as f(x) = (1 / √{x- [x]}) [x] is the greatest integer function1.x is any real number other than an integer
2.And real value of x
3.All natural numbers
4.None of these
Posted Date:-2021-11-13 10:00:48
Find the sum of 17 terms of the A.P. 5, 9, 13, 17, …
1.623
2.580
3.629
4.650
Posted Date:-2021-11-13 10:02:19
From 8 gentlemen and 4 ladies, a committee of 5 is to be formed. In how many ways can this be done so as to include at least one lady?
1.736
2.728
3.280
4.792
Posted Date:-2021-11-13 09:55:49
How many numbers greater than 10 lakhs be formed from 2, 3, 0, 3, 4, 2, 3?
1.420
2.360
3.400
4.300
Posted Date:-2021-11-13 09:57:43
How many terms of A.P. 21, 18, 15, 12, … must be taken to give the sum zero.
1.10
2.15
3.22
4.11
Posted Date:-2021-11-13 10:04:13
If A = a b is such that A2 = I, then c - a
1.1+ a2 + bc =0
2.1+ a2 + bc =0
3.1 –a2 -bc = 0
4.1 +a2 -bc=0
Posted Date:-2021-11-13 10:12:45
If A = {1, 2, 3}, B = {1,4,6, 9} and R is a relation from A to B defined by x is greater than y. The range of R is1.{1, 4, 6, 9}
2.{4, 6, 9}
3.{1}
4.None of these
Posted Date:-2021-11-13 10:18:59
If A is an invertible matrix of order 2, then det( A-1) is equal to
1.det( A)
2.1/det( A)
3.1
4.0
Posted Date:-2021-11-13 10:14:00
If A, B are symmetric matrices of the same order, then AB – BA is a
1.Skew symmetric matrix
2.Symmetric matrix
3.Zero matrix
4.Identity matrix
Posted Date:-2021-11-13 10:12:12
If b = f(a) and f(a) = (a – 1) / (a + 1), which of the following is true?
1.f(2a) = f(a) + 1
2.f(1/a) = -f(a)
3.a = f(b) + f(1/a)
4.a = f(b)
Posted Date:-2021-11-13 10:18:30
If in an infinite G.P., the first term is equal to the sum of all successive terms then its common ratio is
1.1 / 10
2.1 / 11
3.1 / 9
4.1 / 20
Posted Date:-2021-11-13 09:54:52
If in expansion of (1 +y)n the coefficient of the 5th, 6th and the 7th terms are in A.P the n is equal to
1.7, 11
2.7, 14
3.8, 16
4.None of these
Posted Date:-2021-11-13 10:08:17
If n arithmetic means are inserted between 1 and 31, such that the ratio of the first mean and the nth mean is 3 : 29, then the value of n is
1.10
2.12
3.13
4.14
Posted Date:-2021-11-13 09:54:29
If probability P( n, r) =720 and combination C(n, r) =120 then r is
1.9
2.8
3.5
4.3
Posted Date:-2021-11-13 10:09:50
If R is a relation from a finite set A having m elements to a finite set B having n elements, then the number of relations from A to B is
1.2mn
2.2mn -1
3.2mn
4.Mn
Posted Date:-2021-11-13 10:16:18
If Ram has 3 tickets of a lottery for which 10 tickets were sold and 5 prizes are to be given, the probability that he will win at least one prize is
1.7/12
2.9/12
3.1/12
4.11/12
Posted Date:-2021-11-13 09:58:20
If the set has p elements, b has q elements, the no of elements in A x B is
1.p + q
2.p + q + 1
3.pq
4.p2
Posted Date:-2021-11-13 10:16:52
If z = (2-3i) and z2-4z+13 = 0 and hence find the value of (4z3-3z2+169)
1.0
2.-1
3.10
4.9
Posted Date:-2021-11-13 10:19:56
In a set – builder method, the null set is represented by
1.{ }
2.Φ
3.{ x : x ≠x }
4.{ x : x = x }
Posted Date:-2021-11-13 09:59:17
In a survey conducted in Patna, it was found that 3/4ths of town owns color T.V., 85 % of the people own refrigerators and every 4 in 5 in the town own music systems, what is the minimum percentage of people who have all the three?
1.30 %
2.55 %
3.40 %
4.None of these
Posted Date:-2021-11-13 09:59:42
In how many ways 4 men and 4 women can be seated in a row so that men and women are alternate?
1.28
2.36
3.4! 4!
4.2.4! 4!
Posted Date:-2021-11-13 10:06:57
In PERT the span of time between the optimistic and pessismistic time estimates of an activity is _______
1.3σ
2.12σ
3.6σ
4.None of the above.
Posted Date:-2021-11-13 09:58:56
Inverse of a square matrix A, denoted by A-1 is also a square matrix of the same order such that A A-1 is
1.A-1
2.A
3.I
4.AI
Posted Date:-2021-11-13 10:11:17
Is xyz
1.Non linear
2.Linear
3.Binomial
4.None of these
Posted Date:-2021-11-13 10:10:51
Let A be a square matrix of order 3 x 3, then | kA | is equal to
1.k | A |
2.k2 | A |
3.k3 | A |
4.3k | A |
Posted Date:-2021-11-13 10:13:11
Let f = {(x, x2 /1+x2 ): x € R } be a function from R into R . range of x is1.negative real numbers.
2.non negative real numbers.
3.positive real numbers.
4.any positive real number x such that 0≤ x <1
Posted Date:-2021-11-13 10:01:29
Let f(x) = x / x+ 3, then f (x + 1) =
1.3x + 2/ x+ 2
2.x + 1 / x + 4
3.(x + 1) / (x + 3)
4.2 x + 3 / (x + 3)
Posted Date:-2021-11-13 10:17:47
Log 36 / log 6
1.5
2.8
3.3
4.2
Posted Date:-2021-11-13 10:03:12
The argument of (1 – i) / (1 + i) is
1.– π / 2
2.Ï€ / 2
3.Ï€ 3 / 2
4.5 π / 2
Posted Date:-2021-11-13 10:03:45
The greatest possible number of points of intersection of 8 straight lines and 4 circles is
1.32
2.64
3.76
4.104
Posted Date:-2021-11-13 09:56:16
The number of diagonals that can be drawn by joining the vertices of an octagon is
1.20
2.28
3.8
4.16
Posted Date:-2021-11-13 10:07:24
The number of triangles that can be formed with 10 points as vertices, n of them being collinear, is 110. Then n is
1.3
2.4
3.5
4.6
Posted Date:-2021-11-13 10:06:29
The range of the function f(x) = |x - 1| is
1.(- ∞, 0)
2.[0, ∞)
3.(0, - ∞)
4.R
Posted Date:-2021-11-13 10:00:12
The sum of all odd numbers between 100 and 200 is
1.7,000
2.8,000
3.8,500
4.7,500
Posted Date:-2021-11-13 09:54:01
The two geometric means between the numbers 1 and 64 are
1.1 and 64
2.2 and 16
3.4 and 16
4.3 and 16
Posted Date:-2021-11-13 10:05:06
The union of infinite number of open sets is
1.An open set
2.A closed set
3.Need not be an open set
4.Not a set
Posted Date:-2021-11-13 10:05:37