a
b
c
d
What is the number of 6-digit numbers that can be fonned only by using 0, 1, 2, 3, 4 and 5 (each once); and divisible by 6 ?
96
120
192
312
What is the binary number equivalent to decimal number 1011 ?
1011
111011
11111001
111110011
Let A be a matrix of order 3x3 and IAI = 4. If |2 adj(3A)| = 2a3β, then what is the value of (a + β) ?
12
13
17
24
a
b
c
d
Let A and B be symmetric matrices of same order, then which one of the following is correct regarding (AB-BA)?
1. . Its diagonal entries are equal but nonzero
2. The sum of its non-diagonal entries is zero
Select the correct answer using the code given below :
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Consider the following statements in respect of square matrices A,B, C each of same order n :
1. AB= AC⇒B = C if A ts nonsingular
2. If BX= CX for every column matrix X having n rows then B=C
Which of the statements given above is/are correct ?
1 only
2 only
Both 1 and 2
Neither I nor 2
a
b
c
d
Let AX= B be a system of 3 linear equations with 3-unknowns. Let X1 and X2 be its two distinct solutions. If thecombination aX1 + bX2 is a solution of AX= B; where a, b are real numbers, then which one of the following is correct ?
a= b
a+ b = 1
a+ b = 0
a - b = 1
What is the sum of the roots of the
equation | 0 x-a x-b |
| 0 o x-c | = 0
| x+b x+c 1 |
a + b + c
a - b + c
a + b - c
a - b - c
If 2 - i √3 where i = √-1 is a root of the equation x2 + ax+ b = 0, then what is the value of(a+ b)?
-11
-3
0
3
a
b
c
d
a
b
c
d
a
b
c
d
a
b
c
d
5
6
7
n cannot be determined
For how many integral values of k, the equation x2- 4x + k = 0, where k is an integer has real roots and both of them lie in the interval (0, 5) ?
3
4
5
6
a
b
c
d
a
b
c
d
a
b
c
d
a
b
c
d
A mapping f': A → B defined as
f'(x) = 2x+3/3x+5, x € A
If f' to be onto, then what are A and B equal to ?
A = R\{-j} and B = R\{-f}
A= Rand B = R\{-j}
A=R\{-f} and B == R\{0}
A=R\{-5/3} and B = R\{2/3}
a and β are distinct real roots of the quadratic equation x2+ ax+ b = 0.
Which of the following statements is/are sufficient to find a?
1. a+β= 0, a2 +β2 = 2
2. aβ2 = -1, a = 0
Select the correct answer using the code given below :
I only
2 only
Both I and 2
Neither I nor 2
6
8
9
10
How many terms are there in the expansion of (3x- y )4(x + 3y )4 ?
9
12
15
17
p, q, r and s are in AP such that p + s = 8 and qr= 15. What is the difference between largest and smallest numbers?
6
5
4
3
Consider the following statements for a fixed natural number n :
1. C (n,r) is greatest if n = 2r
2. C (n,r) is greatest if n = 2r - 1 and n = 2r + 1.
Which of the statements given above is/are correct?
1 only
2 only
Both 1 and 2
Neither 1 nor 2
m parallel lines cut n parallel lines giving rise to 60 parallelograms. What is the value of (m + n)?
6
7
8
9
Let x be the number of permutations of the word ' PERMUTATIONS' andy be the number of permutations of the word ' COMBINATIONS.' Which one of the following is correct ?
x = y
y = 2x
x = 4y
y = 4x
5-digit numbers are formed using the digits 0, 1, 2, 4, 5 without repetition. What is the percentage of numbers which are greater than 50,000?
20%
25%
75%
100%
What is cos2β equal to?
(cosa - sina)2
(cosa + sina)2
(cosa - sina)3
(cosa - + sina)3
Consider the following for the next two (02 items) that follow:
A flagstaff 20m long standing on a pillar 10m high subtends an angles tan-1(0.5) at a pointg P on the ground. Let θ be the angle by the pillar at this point P.
Question:
If x is the distance of P from bottom of the pillar, then consider the following statem nts :
1. x can take two values which are in the ratio 1 : 3
2. x can be equal to height of the flagstaff
Which of the statements given above is/are correct ?
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Consider the following for the next two (02 items) that follow:
A flagstaff 20m long standing on a pillar 10m high subtends an angles tan-1(0.5) at a pointg P on the ground. Let θ be the angle by the pillar at this point P.
Question:
What is a possible value of tan θ ?
Consider the following for the next two (02) items that follow:
The perimeter of a triangle ABC is 6 times the AM of sine of angles the triangle.
Further BC = √3 and CA = 1.
Question:
What is the perimeter of the triangle ?
√3 + l
√3 +2
√3 + 3
2√ 3 + 1
Consider the following for the next two (02) items that follow:
The perimeter of a triangle ABC is 6 times the AM of sine of angles the triangle.
Further BC = √3 and CA = 1.
Question:
Consider the following statements :
1. ABC is right angled triangle
2. The angles of the triangle are in AP
Which of the statements given above is/are correct?
1 only
2 only
Both 1 and 2
Neither I nor 2
Consider the following for the nextg two (02) items that follow:
Let x = sin2A+sinA+1 where 0 < A ≤ π/2
sin A
Question:
What is the minimum value of x ?
1
2
3
4
Consider the following for the nextg two (02) items that follow:
Let x = sin2A+sinA+1 where 0 < A ≤ π/2
sin A
Question:
At what value of A does x attain the minimum value ?
π/6
π/4
π/3
π/2
Consider the following for the next two (02) items that follow :
In the triangle ABC,
a2+b2+c2 = ac+ √3 bc
Question:
What is the nature of the triangle ?
Equilateral
Isosceles
Right angled triangle
Scalene but not right angled
Consider the following for the next two (02) items that follow :
In the triangle ABC,
a2+b2+c2 = ac+ √3 bc
Question:
If c = 8, what is the area of the triangle?
4√3
6√3
8√3
12√3
Question:
At what value of x does the function attain minimum value ?
2
3
4
0
Question:
What is the minimum value of the function?
2
3
4
0
Question:
If the sum S is divided by 8, what is the remainder ?
0
1
2
Cannot be determined
Question:
If the sum S is divided by 60, what is the remainder ?
1
3
17
34
Question:
What is the value of n ?
4
6
8
10
Question:
What is the length of the smallest side?
12
14
16
18
Consider the following for the (02) items that follow :
Given that next two
sin x+cos x+tan x+ cot x+sec x+cosec x = 7
Question:
a
b
c
d
Consider the following for the (02) items that follow :
Given that next two
sin x+cos x+tan x+ cot x+sec x+cosec x = 7
Question:
0
14
21
28
Question:
What is the HM of the roots of the equation?
2
4
2√2
2√3
Question:
a
b
c
d
Consider the following for the next two (02) items that follow:
Let ? (a,b,c,a) = | a b aα+b)
| b c bα+c)
|aα+b ba+c 0 )
Question:
If ? (a, b, c, a)= 0 for every a > 0, then which one of the following is correct?
a, b, c are in AP
a, b, c are in GP
a, 2b, c are in AP
a, 2b, c are in GP
Consider the following for the next two (02) items that follow:
Let ? (a,b,c,a) = | a b aα+b)
| b c bα+c)
|aα+b ba+c 0 )
Question:
a
b
c
d
Question:
What is the least value of m(θ) ?
n
2n
3n
4n
Question:
Under what condition does m attain the least value ?
n = tan2θ
n = cot2θ
n = sin 2θ
n = cos2θ
Consider the following for the next two (02) items that follow :
A quadrilateral is formed by the lines
x=0,y=O, x+y= 1 and 6x+y=3.
Question:
What is the equation of diagonal through origin ?
3x + y = 0
2x + 3y = 0
3x - 2y = 0
3x + 2y = 0
Consider the following for the next two (02) items that follow :
A quadrilateral is formed by the lines
x=0,y=O, x+y= 1 and 6x+y=3.
Question:
hat is the equation of other diago nal?
x + 2y - 1 = 0
x - 2y - 1 = 0
2x + y + 1 = 0
2x + y - 1 = 0
Question:
What is PE+ PF equal to?
1
2
3
4
Question:
a
b
c
d
Consider the following for the next two (02) items that follow :
The line y = x partitions the circle
( x- a)2 + y2 = a2 in two segments.
Question:
a
b
c
d
Consider the following for the next two (02) items that follow :
The line y = x partitions the circle
( x- a)2 + y2 = a2 in two segments.
Question:
a
b
c
d
Question:
What is u + v + w equal to ?
-2
-1
1
2
Question:
If P(x, y, z) is any point on the sphere, then what is PA2+ PB2 equal to ?
15
14
13
6.5
Question:
What is the value of k ?
4
2
1
-1
Question:
What are the direction ratios of a line which is perpendicular to both the lines?
(1, 2, 10)
(-1, -2, 10)
(11, 12, -10)
(11, 2, - 10)
Question:
a
b
c
d
Question:
→ → →
What is the angle between (a+b) and c
π/2
π/3
π/4
π/6
Consider the following for the next two (02 items) that follow:
Let a vector a = 4î - 8 j + k make angles a, β, y with the positive directons of x,y,z axes respectively.
Question:
What is cosa equal to ?
Consider the following for the next two (02 items) that follow:
Let a vector a = 4î - 8 j + k make angles a, β, y with the positive directons of x,y,z axes respectively.
Question:
What is cos2β + cos2y equal to ?
Consider the following for the next two (02) items that follow:
The position vectors of two points A and B are î -î and î + k respectively.
Question:
Consider the following points :
1. (-1, -3, 1)
2. (- 1, 3, 2)
3. (- 2, 5, 3)
Which of the above points lie on the line joining A and B ?
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
Consider the following for the next two (02) items that follow:
The position vectors of two points A and B are î -î and î + k respectively.
Question:
What is the magnitude of →AB ?
2
3
√6
√3
Consider the following for the next three (03) items that follow :
Let f (x) = Pex+ Qe2x + Re3x, where P, Q, R are real numbers. Further /(0)=6, f'(ln 3) 282 and f (x)dx =11
Question:
What is the value of Q ?
1
2
3
4
Consider the following for the next three (03) items that follow :
Let f (x) = Pex+ Qe2x + Re3x, where P, Q, R are real numbers. Further /(0)=6, f'(ln 3) 282 and f (x)dx =11
Question:
What is the value of R ?
1
2
3
4
Consider the following for the next three (03) items that follow :
Let f (x) = Pex+ Qe2x + Re3x, where P, Q, R are real numbers. Further /(0)=6, f'(ln 3) 282 and f (x)dx =11
Question:
What is f'(0) equal to ?
18
16
15
14
Consider the following for the next two (02) items that follow :
Suppose E is the differential equation representing family of curves y2 = 2cx +2c√c where c is a positive parameter.
Question:
What is the order of the differential equation?
1
2
3
4
Consider the following for the next two (02) items that follow :
Suppose E is the differential equation representing family of curves y2 = 2cx +2c√c where c is a positive parameter.
Question:
What is the degree of the differential equation?
2
3
4
Degree does not exist
Consider the following for the next three (03) items that follow :
Let f' (x) = | cos x x 1 |
| 2sin x x2 2x |
| tax x x 1 |
Question:
What is f'(0) equal to ?
-1
0
1
2
Consider the following for the next three (03) items that follow :
Let f' (x) = | cos x x 1 |
| 2sin x x2 2x |
| tax x x 1 |
Question:
What is lim f'(x) equal to ?
x→ x
-1
0
1
2
Consider the following for the next three (03) items that follow :
Let f' (x) = | cos x x 1 |
| 2sin x x2 2x |
| tax x x 1 |
Question:
What is lim f'(x) equal to ?
x→0 x2
-1
0
1
2
Consider the following for the next two (02) items that follow :
Let f(x) = sin[n2]x+cos[-π2]x + cos[-π2] where [.] is a greatest integer function.
Question:
-1
0
1
2
Consider the following for the next two (02) items that follow :
Let f(x) = sin[n2]x+cos[-π2]x + cos[-π2] where [.] is a greatest integer function.
Question:
What is f {π/4} equal to ?
0
-1
1
1/√2
Consider the following for the next three (030 items that follow :
Question:
What is value of I1+I2/I1-I2
1
π
π2
π3
Consider the following for the next three (030 items that follow :
Question:
What is the value of 8I21 ?
π
π2
π3
π4
Consider the following for the next three (030 items that follow :
Question:
What is value of I2?
Consider the fdollowing for next tgwo (02) itemks that follow:
Question:
a
b
c
d
Consider the fdollowing for next tgwo (02) itemks that follow:
Question:
What is I equal to when a < b < 0 ?
a + b
a - b
b - a
a + - b
Considering the following for the next three (03) items that follow:
Let f'(x) = |Inx|,x ≠1
Question:
What is the derivative of f'(x) at x=0.5?
-2
-1
1
2
Considering the following for the next three (03) items that follow:
Let f'(x) = |Inx|,x ≠1
Question:
What is the derivative of f'(x) atx = 2?
-1
2
Considering the following for the next three (03) items that follow:
Let f'(x) = |Inx|,x ≠1
Question:
What is the derivative of f°f(x), where 1
Consider the following for next (2) two items that follow :
| x + 6, x ≤ 1
Let f'(x) = | px + q, 1 < x < 2
| 5x, x ≥ 2
and f'(x) is continuous
Question:
What is the value of p ?
2
3
4
5
Consider the following for next (2) two items that follow :
| x + 6, x ≤ 1
Let f'(x) = | px + q, 1 < x < 2
| 5x, x ≥ 2
and f'(x) is continuous
Question:
What is the value of q ?
2
3
4
5
1 only
2 only
Both l and 2
Neither I nor 2
What is the derivative of sin2x with respect to cos2x ?
-1
1
sin2x
cos2x
For what value of m with m < 0, is the area bounded by the lines y = x, y = mx and x = 2 equal to 3 ?
-1
-2
a
b
c
d
A solution of the differential equation
(dy/dx)2 - x dy/dx=0 is
y = 2x
y = 2x+4
y = 2x-1
y = x2-2)/2
If f'(x) = x2 + 2 and g(x) = 2x - 3, then what is (fg)(1) equal to ?
3
1
-2
-3
What is the range of the function f(x)=x +lxl if the domain is the set of real numbers ?
(0, oo)
[0, oo)
(- co, co)
(1, co)
If f'(x) =x(4x2 - 3 ), then what is /(sinθ) equal to ?
- sin3θ
- cos3θ
sin3θ
- sin4θ
What is lim
equal to
-1
0
1
Limit does not exist
What is lim equal to
-1
-3
3
Limit does not exist
The mean and variance of five obser vations are 14 and 13.2 respectively. Three of the five observations are 11, 16 and 20. What are the other two observations ?
8 and 15
9 and 14
10 and 13
11 and 12
Let A and B be two independent events such that
P(A) = 0.7, P(B) = k, P(AUB) = 0.8.
What is the value of k ?
A biased coin with the probability of getting head equal to ¼ is tossed five times. What is the probability of getting tail in all the first four tosses followed by head ?
A coin is bised so that heads comes up thrice as likely as tails. In four independent tosses of coin, what is probability of getting exactly three heads?
If X and Y be two random variables such that X + Y = 100. If X follows Binomial distribution with parameters n = 100 and p = 4/5, what is the variance of Y?
1
16
If two lines of regression are x + 4y + 1 = 0 and 4x + 9y + 7 = 0, then what is the value of x when y=-3?
-13
-5
5
7
The central angles p, q, r and s (in degrees) of four sectors in a Pie Chart satisfy the relation 9p = 3q = 2r =6s. What is the value of 4p - q ?
12
24
30
36
The observations 4, 1, 4, 3, 6, 2, 1, 3, 4, 5, 1, 6 are outputs of 12 dices thrown simultaneously. If m and M are means of lowest 8 observations and highest 4 observations respectively, then what is (2m + M) equal to ?
10
12
17
21
A bivariate data set contains only two points (-1, 1) and (3, 2). What will be the line of regression of y on x ?
x-4y+5=0
3x + 2y - I = 0
x + 4y + 1 = 0
5x - 4y + 1 = 0
A die is thrown 10 times and obtained the following outputs :
1, 2, 1, 1, 2, 1, 4, 6, 5, 4
What will be the mode of data so obtained?
6
4
2
1
Waht is following frequency distribution :
What is the value of median of the distribution ?
1
2
3
3.5
For data -1, I, 4, 3, 8, 12, 17, 19, 9,
11; if M is the median of first 5 observations and N is the median of last five observations, then what is the value of 4M - N?
7
4
1
0
Let P, Q, R represent mean median and mode. If for some distribution 5P = 4Q = R/2, then what is P+Q/2P+0.7R equal to?
a
b
c
d
a
b
c
d
a
b
c
d
One bag contains 3 white and 2 black balls, another bag contains 2 white and 3 black balls. Two balls are drawn from the first bag and put it into the second bag and then a ball is drawn from the second bag. What is the probability that it is white ?
Three dice are thrown. What is the probability that each face shows only multiples of 3 ?
What is the probability that the month of December has 5 Sundays ?
1
A natural number n is choosen from the first 50 natural numbers. What is the probability that n + 50/n < 50 ?