**Correct Answer : D**

**Explanation :**

(1, 2)

Correct Answered :

Wrong Answered :

A

(2, 4)

B

(1, 3)

C

(2, 3)

D

(1, 2)

A

{–1, 0, 1, 2, 3}

B

{0, 1, 2, 3, 4}

C

{–2, –1, 0, –1}

D

{–2, –1, 0, 1, 2}

Mathematics
JSA 2021
**Correct Answer : D**

**Explanation : **

{–2, –1, 0, 1, 2}

Correct Answered :

Wrong Answered :

A

11

B

9

C

14

D

10

A

2/√3

B

1/√3

C

5/√3

D

4/√3

A

3

B

-3

C

-6

D

6

A

ϕ, {a}, {b}, {a, b}

B

ϕ, {a}, {b}

C

{a}, {b}, {a, b}

D

{a}, {b}

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

ϕ, {a}, {b}, {a, b}

Correct Answered :

Wrong Answered :

A

–3/2

B

5/2

C

–5/2

D

3/2

A

P = {3, 6, 9, 12, 15} and Q = {x : x = 3n and 1 ≤ x < 6}

B

P = {5, 25, 125, 625} and Q = {x : x = 5n and 1 ≤ x ≤ 3}

C

P = {a, b, c, d} and Q = {d, c, a, b, e}

D

P = {2, e, 4, 5, g} and Q = {g, 1, 2, 4, 5, 6}

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

P = {3, 6, 9, 12, 15} and Q = {x : x = 3n and 1 ≤ x < 6}

Correct Answered :

Wrong Answered :

A

6

B

5

C

4

D

3

A

14

B

12

C

11

D

10

A

64

B

32

C

8

D

16

A

3x^{2} – sinx – (3/x^{4} )

B

3x^{2} – sinx + (2/x^{3} )

C

3x^{2} + sinx + (2/x^{3} )

D

3x^{2} + sinx – (2/x^{3} )

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

3x^{2} – sinx – (3/x^{4} )

Correct Answered :

Wrong Answered :

A

65 percent

B

70 percent

C

60 percent

D

55 percent

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

65 percent

Correct Answered :

Wrong Answered :

A

3

B

2

C

4

D

5

A

x^{4} – 7x + 2

B

x^{5} – 7x + 6

C

x^{4} – 7x + 5

D

x^{5} – 7x + 5

Mathematics
JSA 2021
**Correct Answer : D**

**Explanation : **

x^{5} – 7x + 5

Correct Answered :

Wrong Answered :

A

{1, 2, 3, 4, 5, 6}

B

{2, 4, 6}

C

{2, 4}

D

ϕ

A

16

B

12

C

20

D

8

A

A = {1, 2, 3, 4, 5, 6, 7, 8}, B = {x : x is a natural number and x < 8}

B

A = {3, 6, 9, 12}, B = {x : x = 3n and 1 ≤ n ≤ 4}

C

A = {2, 4, 6, 8}, B = {8, 6, 4, 1}

D

A = {a, e, i, o, v}, B = {e, a, u, i, o}

Mathematics
JSA 2021
**Correct Answer : B**

**Explanation : **

A = {3, 6, 9, 12}, B = {x : x = 3n and 1 ≤ n ≤ 4}

Correct Answered :

Wrong Answered :

A

-e^{-x}

B

-e^{x}

C

e^{x}

D

e^{-x}

A

{49, –81}

B

{9, –9}

C

{81, –81}

D

{8, –8}

A

x + 6 = 0

B

x + 3 = 0

C

x + 5 = 0

D

x + 2 = 0

A

1

B

2

C

3

D

4

A

10

B

9

C

12

D

11

A

2, (11/3)

B

5, (11/6)

C

3, (11/4)

D

4, (9/4)

A

2cosec2x

B

2sec2x

C

2sin2x

D

2cos2x

A

x^{2} + y^{2} – 4x – 6y – 3 = 0

B

x^{2} + y^{2} + 4x – 6y – 3 = 0

C

x^{2} + y^{2} – 4x + 6y + 3 = 0

D

x^{2} + y^{2} – 4x – 6y + 3 = 0

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

x^{2} + y^{2} – 4x – 6y – 3 = 0

Correct Answered :

Wrong Answered :

A

4x^{2} + 4y^{2} = √5

B

4x^{2} – 4y^{2} = 5

C

4x^{2} + 4y^{2} = 5

D

4x^{2} – 4y^{2} = √5

Mathematics
JSA 2021
**Correct Answer : C**

**Explanation : **

4x^{2} + 4y^{2} = 5

Correct Answered :

Wrong Answered :

A

{M, A, T, H, E, M, A, T, C, S}

B

{M, A, T, H, E, I, S}

C

{M, A, T, E, H, I}

D

{M, A, T, H, E, I, C, S}

Mathematics
JSA 2021
**Correct Answer : D**

**Explanation : **

{M, A, T, H, E, I, C, S}

Correct Answered :

Wrong Answered :

A

{1, 2, 3} ∈ A

B

{3, 4} ∈ A

C

{3, 4} ⊂ A

D

1 ⊂ A

Mathematics
JSA 2021
**Correct Answer : C**

**Explanation : **

{3, 4} ⊂ A

Correct Answered :

Wrong Answered :

A

x^{2} + y^{2} – 4x + 4y + 4 = 0

B

x^{2} + y^{2} + 4x – 4y + 8 = 0

C

x^{2} + y^{2} + 4x + 4y + 8 = 0

D

x^{2} + y^{2} + 4x – 4y + 4 = 0

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

x^{2} + y^{2} – 4x + 4y + 4 = 0

Correct Answered :

Wrong Answered :

A

A = {2, 7, 9} and B = {7, 9, 2}

B

A = {a, e, f} and B = {f, e}

C

A = {2, 4, 6, 8} and B = {4, 8}

D

A = {a, b, c, d, e} and B = {e, c, b, a}

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

A = {2, 7, 9} and B = {7, 9, 2}

Correct Answered :

Wrong Answered :

A

{x : x = n^{3} and 1 ≤ n ≤ 15}

B

{x : x = n^{3} and 1 ≤ n ≤ 5}

C

{x : x = 3^{n} and 1 < n ≤ 15}

D

{x : x = 3^{n} and 1 ≤ n ≤ 505}

Mathematics
JSA 2021
**Correct Answer : B**

**Explanation : **

{x : x = n^{3} and 1 ≤ n ≤ 5}

Correct Answered :

Wrong Answered :

A

4^{x} log2 + 5x^{5}

B

5^{x} log4 + 5x^{4}

C

4^{x} log4 + 5x^{4}

D

4^{x} log2 + 4x^{5}

Mathematics
JSA 2021
**Correct Answer : C**

**Explanation : **

4^{x} log4 + 5x^{4}

Correct Answered :

Wrong Answered :

A

y^{2} = 21x – 14

B

y^{2} = 14x – 21

C

y^{2} = 14x + 21

D

y^{2} = 21x + 14

Mathematics
JSA 2021
**Correct Answer : C**

**Explanation : **

y^{2} = 14x + 21

Correct Answered :

Wrong Answered :

A

–2

B

–3

C

zero

D

–1

A

π

B

π/4

C

π/6

D

π/2

A

3

B

1

C

2

D

4

A

{1, 2}

B

{0, 1, 2}

C

{1}, {2}

D

{1, 3}

A

–tan^{2}x

B

tan^{2}x

C

cosec^{2}x

D

-cosec^{2}x

Mathematics
JSA 2021
**Correct Answer : D**

**Explanation : **

-cosec^{2}x

Correct Answered :

Wrong Answered :

A

zero

B

2

C

-1

D

1

A

The set of numbers which are multiple of 3

B

The set of even numbers

C

The set of whole number less than 1

D

The set of negative integers

Mathematics
JSA 2021
**Correct Answer : C**

**Explanation : **

The set of whole number less than 1

Correct Answered :

Wrong Answered :

A

2/5

B

3/4

C

3/5

D

4/5

A

(14, 21)

B

(21, 23)

C

(16, 19)

D

(15, 23)

A

5

B

15

C

8

D

10

A

13

B

11

C

14

D

12

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

f`(x) =10x^{4} + 3x^{2}
So at x=1
f`(1)= 10 + 3 = 13

Correct Answered :

Wrong Answered :

A

4sin(4x + 5)

B

4cos(4x + 5)

C

5cos(4x + 5)

D

5sin(4x + 5)

Mathematics
JSA 2021
**Correct Answer : B**

**Explanation : **

4cos(4x + 5)

Correct Answered :

Wrong Answered :

A

2x – 3y + 5 = 0

B

2x + 3y + 10 = 0

C

2x – 3y + 10 = 0

D

2x + 3y + 5 = 0

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

2x – 3y + 5 = 0

Correct Answered :

Wrong Answered :

A

(A ⋂ B )` = A` ∪ B`

B

(A ⋂ B)` = A` ⋂ B`

C

A ∪ B) = A ⋂ B

D

(A ⋂ B) = A` ⋂ B`

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

(A ⋂ B )` = A` ∪ B`

Correct Answered :

Wrong Answered :

A

2

B

3

C

4

D

1

A

A = {–1, 0, 1, 2}

B

A = {–1, 0, 1, 2, 3}

C

A = {0, 1, 2}

D

A = {0, 1, 2, 3}

Mathematics
JSA 2021
**Correct Answer : A**

**Explanation : **

A = {–1, 0, 1, 2}

Correct Answered :

Wrong Answered :

A

{x : x = 3^{n}, n ∈ N and 1 < n < 5}

B

{x : x = 3^{n}, n ∈ N and 1 < n ≤ 5}

C

{x : x = 3^{n}, n ∈ N and 1 ≤ n ≤ 5}

D

{x : x = 3^{n}, n ∈ N and 1 ≤ n < 5}

Mathematics
JSA 2021
**Correct Answer : C**

**Explanation : **

{x : x = 3^{n}, n ∈ N and 1 ≤ n ≤ 5}

Correct Answered :

Wrong Answered :

A

x + y = 8

B

x – y = –8

C

x + y = –8

D

x – y = 8

A

109/12

B

113/12

C

119/12

D

115/12

A

–18

B

–16

C

–12

D

–20

A

Set of lines perpendicular to x-axis

B

The set of numbers which are multiple of 5

C

Set of letters in English alphabet

D

Set of lines parallel to x-axis

Mathematics
JSA 2021
**Correct Answer : C**

**Explanation : **

Set of letters in English alphabet

Correct Answered :

Wrong Answered :

A

4/5

B

2/5

C

3/5

D

1/5

A

970

B

990

C

980

D

960

A

54225

B

56225

C

53225

D

55225

A

354

B

364

C

374

D

344

A

39

B

37

C

35

D

41

A

1

B

0

C

-13

D

None of these

A

1

B

2

C

3

D

5

Mathematics
JKPSI 2022 CBT
VERIFIED
**Correct Answer : B**

**Explanation : **

2

Correct Answered :

Wrong Answered :

A

35

B

40

C

52

D

28

Mathematics
JKPSI 2022 CBT
**Correct Answer : B**

**Explanation : **

Given:

length of rod = 50 m, length of each piece = 125 cm

Formula Used:

number of pieces of rod = length of rod/length of each piece

1 m = 100 cm

Calculation:

⇒ length of rod = 50 m = 5000 cm

⇒ number of pieces of rod = 5000/125 = 40

∴ required number of pieces of rod = 40

Correct Answered :

Wrong Answered :

A

532 x 10^{5}

B

5.32 x 10^{-4}

C

532 x x 10^{-3}

D

0.532 x 10^{2}

Mathematics
JKPSI 2022 CBT
**Correct Answer : B**

**Explanation : **

5.32 x 10<sup>-4</sup>

Correct Answered :

Wrong Answered :

A

18 cm

B

20 cm

C

60 cm

D

45 cm

Mathematics
JKPSI 2022 CBT
VERIFIED
**Correct Answer : A**

**Explanation : **

18 cm

Correct Answered :

Wrong Answered :

A

4

B

0

C

2

D

1

A

8

B

-9

C

3

D

-6

A

3x7x11

B

21x11

C

33x4

D

3x4x11

Mathematics
JKPSI 2022 CBT
**Correct Answer : A**

**Explanation : **

3x7x11

Correct Answered :

Wrong Answered :

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