Mathematics Test

Result

Mathematics Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

The LCM of smallest two digit composite number and the smallest composite number is

A
12

B
4

C
20

D
44
Question 2
1 / -0

The number of binary operations on a set {1, 2, 3} is

A
3

B
3²

C
3³

D
3⁹
Question 3
1 / -0

The angle between two vectors with respective magnitude 2 and 3 such that

A
π/2

B
0

C
π/6

D
π/3
Question 4
1 / -0

The mean of n observation is If the first observation is increased by 1 , second by 2 , the third by 3 , and so on, then the new mean is

A

B

C

D
Question 5
1 / -0

A
[1, ∞)

B
(−∞, 1)

C
(−∞, 1]

D
(1, ∞) ∪ {0}
Question 6
1 / -0

For every natural number n, 2³ⁿ − 1 is divisible by

A
6

B
16

C
8

D
7
Question 7
1 / -0

If x, y and z be greater than 1 , then the

A
log x log y log z

B
log x + log y + log z

C
0

D
1-(log x log y log z )
Question 8
1 / -0

The first two terms of a geometric progression add to 12 . The sum of the third and the fourth terms is 48 . If the terms of the geometric progression are alternately positive and negative, then the first term is

A
-4

B
-12

C
12

D
4
Question 9
1 / -0

Let P be a 2 × 2 matrix.

Statement-1: adj(adj P) = P

Statement-2: |adj P| = | P|

A
Statement-1 is true, Statement-2 is false

B
Statement-1 is false, Statement-2 is true

C
Statement-1 is true, Statement-2 is true; Statement-2 is a correct explanation for Statement1

D
Statement-1 is true, Statement-2 is true; Statement-2 is not a correct explanation for Statement-1
Question 10
1 / -0

If a line is equally inclined with the coordinate axes, then the angle of inclination is

A

B

C

D