(-3/5) x (-10/9) x (21/-4) x (-6)
1.21
2.42
3.35
4.15
Posted Date:-2021-11-13 14:01:37
-6 ÷ (-8 / 17)
1.48 / 17
2.– 51 / 4
3.51 / 4
4.– 48 / 17
Posted Date:-2021-11-13 13:28:51
A square matrix with each of its diagonal elements equal to unity and all non diagonal elements equal to zero is
1.Scalar matrix
2.Null matrix
3.Identity matrix
4.Column matrix
Posted Date:-2021-11-13 13:34:28
Among 14 players, 5 are bowlers. In how many ways a team of 11 may be formed with at least 4 bowlers?
1.265
2.263
3.264
4.2754
Posted Date:-2021-11-13 14:06:27
At what rate% per annum will Rs 64000 become Rs68921 in 1.5 years interest being compounded half yearly?
1.4%
2.6%
3.5%
4.7%
Posted Date:-2021-11-13 13:30:49
√14 is called
1.Cubic surd
2.Compound surd
3.Biquadratic surd
4.Quadratic surd
Posted Date:-2021-11-13 13:29:36
Evaluate Log 243 / Log 9
1.3/2
2.5/2
3.7/2
4.9/2
Posted Date:-2021-11-13 14:00:13
Find P-1 , if it exist , given P = 10 -2 -5 1
1.P-1 =0
2.P-1 = 1/10 0 1/2 1
3.P-1 =1
4.P-1 does not exist
Posted Date:-2021-11-13 14:09:05
Find the 5th term from the end in the expansion of (x3/2 - 2/x2)9
1.-252 x2
2.-252 x3
3.-250 x2
4.-250 x3
Posted Date:-2021-11-13 14:06:53
Find the 5th term from the end in the expansion of (x3/2 - 2/x2)9
1.4000
2.4096
3.4069
4.4009
Posted Date:-2021-11-13 14:07:42
Find the 5th term from the end of the G.P. 3, 6, 12, 24, …, 12,288
1.384
2.192
3.1536
4.768
Posted Date:-2021-11-13 13:58:06
Find the number of integral solutions of equation x + y + z + t = 29, x > 0 , y > 0 < z > 0 and t > 0
1.27C3
2.28C3
3.2600
4.29C4
Posted Date:-2021-11-13 14:08:11
Find the number of non-congruent rectangles that can be found on a normal 8*8 chessboard
1.24
2.36
3.48
4.None of these
Posted Date:-2021-11-13 13:32:33
Find the number of words formed by permuting all the letters of SERIES
1.177
2.160
3.156
4.180
Posted Date:-2021-11-13 13:29:59
Find the range for the relation : {(3, 5), (2, 5), (2, 6), (3, 7)1.{2, 3}
2.{5, 6, 7}
3.{3, 2, 6}
4.{2, 3, 5}
Posted Date:-2021-11-13 13:55:09
Find the sum of the series 2+5+8+ … +182
1.5520
2.5612
3.5623
4.5418
Posted Date:-2021-11-13 13:26:58
Find values of k if area of triangle is 3sq. units and vertices are (1,3), (0,0) and (k,0)
1.+3
2.-3
3.± 1
4.±2
Posted Date:-2021-11-13 13:52:39
How many 3 digit numbers with distinct digits can be formed such that the product of the digits is the cube of a positive integer?
1.21
2.24
3.36
4.30
Posted Date:-2021-11-13 13:30:24
How many terms of the A.P. 1, 4, 7, 10, … are needed to give the sum 715.
1.21
2.11
3.22
4.19
Posted Date:-2021-11-13 13:28:24
If 20Cr = 20Cr-10-10, then 18Cr is equal to
1.4896
2.816
3.1632
4.None of these
Posted Date:-2021-11-13 14:06:00
If in the expansion of (1 + x)15 the coefficient of (2r +3)th and (r -1)th terms are equal then the value of r is
1.5
2.6
3.4
4.3
Posted Date:-2021-11-13 13:31:39
If R is a relation on a finite set having a elements , then the number of relations on A is
1.2a
2.2a2
3.a²
4.aª
Posted Date:-2021-11-13 13:55:50
If R is the relation “is greater than†from A ={1,2,3,4,5}to B={1,3,4} , Than R-1 is1.{(1,2) ,(1,3),(1,4),(1,5)}
2.{(3,4),(4,5),(3,5)}
3.{(1,2), (1,3), (1,4), (3,4), (1,5), (3,5), (4,5)}
4.{(2,1), (3,1), (4,1),(4,3), (5,1), (5,3), (5,4)}
Posted Date:-2021-11-13 13:26:34
If the sum of p terms of an A.P. is q and the sum of q terms is p, then the sum of p + q terms will be
1.0
2.p – q
3.p + q
4.–(p + q)
Posted Date:-2021-11-13 13:29:15
If x and y vary inversely as each other, x = 10 when y = 6. Find y when x=15.
1.25
2.4
3.90
4.60
Posted Date:-2021-11-13 13:27:21
Is (x+y)(x-y) = -7
1.Linear
2.Non linear
3.Monomial
4.None
Posted Date:-2021-11-13 13:32:57
Is 3x -4y +5z =6
1.Linear
2.Non linear
3.Binominal
4.None
Posted Date:-2021-11-13 14:08:33
Let A ={1,2,3} and R= {(1,2), (1,1), (2,3)}be a relation on A.What minimum number of elements may be adjoined with the elements of R so that it becomes transitive.1.(1,2)
2.(1,3)
3.(2,3)
4.(1,1)
Posted Date:-2021-11-13 13:57:23
Let A be a non singular matrix of order 3 x3.Then |adj A | is equal to
1.|A |
2.|A |2
3.| A |3
4.3 | A|
Posted Date:-2021-11-13 13:53:41
Solve 2x + y +z =7 using Cramer’s rule 3x –y –z =-2 x +2y -3z =-4
1.x=1, y=2 , z=3
2.x=2, y=4, z=3
3.x=1, y=3, z=2
4.x=2, y=3, z=4
Posted Date:-2021-11-13 14:09:55
Solve f(x) = √9-x2 the range is
1.{x: 3< x <0}
2.{x: 0≤ x ≤ 3}
3.{x: 0< x < 3}
4.{x: 3≤ x ≤ 0}
Posted Date:-2021-11-13 13:26:11
Solve log √8/log 8 is the same as
1.1/√8
2.1/8
3.¼
4.½
Posted Date:-2021-11-13 13:59:35
The additive inverse of (-11 / -14) is
1.11 / 14
2.– 14 / 11
3.14 / 11
4.– 11 / 14
Posted Date:-2021-11-13 14:04:23
The coefficient of x-15 in the expansion of ( 3x2 -a/3x3) is
1.-42/27 a7
2.-40/27 a7
3.- 43/27 a6
4.-38/27 a6
Posted Date:-2021-11-13 14:07:19
The conjugate of a complex number z = (a + ib) is
1.– a – ib
2.b – ai
3.b + ai
4.a – ib
Posted Date:-2021-11-13 14:00:58
The cube root of 127 up to four places of decimal are
1.5.0264
2.4.1468
3.5.0236
4.4.1648
Posted Date:-2021-11-13 13:31:12
The equation x +ky +3z = 0 posses a non trivial solution for k if 2x +ky -2z =0 2x +3y -4z =0
1.k= 2
2.k= 3
3.k= 4
4.k=5
Posted Date:-2021-11-13 14:09:31
The number of non zero rows of a matrix in its row echelon form is a
1.Row matrix
2.Column matrix
3.Rank of matrix
4.Augmented matrix
Posted Date:-2021-11-13 13:33:23
The polar form of (i25)3 is
1.Cos π/2 + i Sin π/2
2.Cos π + i Sin π
3.Cos π – i Sin π
4.Cos π/2 - i Sin π/2
Posted Date:-2021-11-13 13:27:46
The probability of a bomb hitting a bridge is ½ and two direct hits are needed to destroy it. The least number of bombs required so that the probability of the bridge being destroyed is greater than 0.9 is
1.8
2.9
3.10
4.11
Posted Date:-2021-11-13 13:32:07
The product of r consecutive positive integers is divisible by
1.r!
2.(r – 1)!
3.( r + 1)!
4.None of these
Posted Date:-2021-11-13 14:05:34
The set of irrational numbers is
1.Finite
2.Countable
3.Uncountable
4.Infinite
Posted Date:-2021-11-13 14:05:11
Thickness of a pile of 12 cardboards is 35 mm. Hence the thickness of a pile of 294 cardboards is
1.80.50 cm
2.83.75 cm
3.85.75 cms
4.81.50 cms
Posted Date:-2021-11-13 14:04:49
Which of the following is correct:
1.Determinant is a square matrix
2.Determinant is a number associated to a square matrix.
3.Determinant is a number associated to a matrix.
4.None of these.
Posted Date:-2021-11-13 13:51:54
Write the modulus of 2+ √-3.
1.√ 7
2.√ 5
3.√ 13
4.√8
Posted Date:-2021-11-13 13:58:48