Sasi Math (Revised for 1024)

Scroll:Real number system >> Multiple Choice Questions >> mcq (4197)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.

The order and radicand of the surd ⁸√ 12 are respectively

1) 12,8
2) 8,12
3) 16,12
4) 12,16

( )

The simple form of √ 50 is

(A) 5√ 10 (B) 5√ 2 (C) 10√ 5 (D) 25√ 2

1) A
2) D
3) B
4) C

( )

2/√ 2 is equal to

(A) 2√ 2 (B) √ 2 (C) √ 2 /2 (D) 2

1) D
2) A
3) B
4) C

( )

Which one of the following is not true

(A) √ 2 is an irrational number

(B) √ 17 is a irrational number

(D) 4√ 16 is an irrational number

1) D
2) B
3) A
4) C

( )

Which one of the following is not true

(A) √ 2 is an irrational number

(B) if a is a rational number and √ b is an irrational number then a√ b is rational number

(D) The square root of every positive integers is always irrational

1) C
2) B
3) A
4) D

( )

Which one of the following is not a surd

(i) √ 8 (ii) √ 30 (iii) √ 4 (iv) √ 3

1) (i),(iii) and (iv)
2) (i), (ii) and (iii)
3) (i), (ii) and (iv)
4) (i), (iii) and (iv)

( )

5 ³√ 3 represents the pure surd

(A) ³√ 15

(B) ³√ 375

(D) ³√ 45

1) B
2) C
3) A
4) D

( )

4√ 11 is equal to

(A) ⁸√ 11 ² (B) ⁸√ 11 ⁴ (C) ⁸√ 11 ⁸ (D) ⁸√ 11 ⁶

1) C
2) B
3) D
4) A

( )

The surd having radicand 9 and order 3 is

(A) ⁹√ 3

(B) ³√ 27

(d) ³√ 81

1) B
2) A
3) C
4) D

( )

10)

The order and radicand of the surd ⁸√ 12 are respectively

1) 8,12
2) 12,16
3) 12,8
4) 16,12

( )

The order and radicand of the surd ⁸√ 12 are respectively

1) 8,12
2) 12,8
3) 16,12
4) 12,16

Answer: 1

SOLUTION 1 :

Ans = 8,12

The simple form of √ 50 is

(A) 5√ 10 (B) 5√ 2 (C) 10√ 5 (D) 25√ 2

1) C
2) A
3) B
4) D

Answer: 3

SOLUTION 1 :

Hints: [ √ 50 = √ 25x2 = √ 25 x √ 2 = 5√ 2 ]

Ans = (B)

2/√ 2 is equal to

(A) 2√ 2 (B) √ 2 (C) √ 2 /2 (D) 2

1) B
2) C
3) A
4) D

Answer: 1

SOLUTION 1 :

Ans = B

Which one of the following is not true

(A) √ 2 is an irrational number

(B) √ 17 is a irrational number

(D) 4√ 16 is an irrational number

1) D
2) A
3) C
4) B

Answer: 1

SOLUTION 1 :

Ans = D

Which one of the following is not true

(A) √ 2 is an irrational number

(B) if a is a rational number and √ b is an irrational number then a√ b is rational number

(D) The square root of every positive integers is always irrational

1) D
2) A
3) B
4) C

Answer: 1

SOLUTION 1 :

Hint: [ The square root of every positive integers is always not irrational number]

Ans = D

Which one of the following is not a surd

(i) √ 8 (ii) √ 30 (iii) √ 4 (iv) √ 3

1) (i),(iii) and (iv)
2) (i), (iii) and (iv)
3) (i), (ii) and (iii)
4) (i), (ii) and (iv)

Answer: 2

SOLUTION 1 :

Hints: [ therefore ³√ 8 = 3√2x2x2 = 2, not a surd]

Ans = (i), (iii) and (iv)

5 ³√ 3 represents the pure surd

(A) ³√ 15

(B) ³√ 375

(D) ³√ 45

1) A
2) C
3) B
4) D

Answer: 3

SOLUTION 1 :

ans = B

4√ 11 is equal to

(A) ⁸√ 11 ² (B) ⁸√ 11 ⁴ (C) ⁸√ 11 ⁸ (D) ⁸√ 11 ⁶

1) A
2) D
3) B
4) C

Answer: 1

SOLUTION 1 :

Ans = A

The surd having radicand 9 and order 3 is

(A) ⁹√ 3

(B) ³√ 27

(d) ³√ 81

1) B
2) C
3) A
4) D

Answer: 2

SOLUTION 1 :

Ans = C

10)

The order and radicand of the surd ⁸√ 12 are respectively

1) 8,12
2) 12,16
3) 16,12
4) 12,8

Answer: 1

SOLUTION 1 :

Ans = 8,12