Question 1

1. The set of letters of word 'PRINCIPAL'

Accepted Answer

P, R, I, N, C, A, L

Answer

P, R, I, N, C, A, L, P

Answer

P, R, I, N, C, I, P, A, L

Answer

P, R, I, N, C, A, L, I

Question 2

2. { x : x < 5 & x > 7 , x $\in$ N }

Accepted Answer

Null set

Answer

Infinite set

Answer

Finite set

Answer

Singleton set

Question 3

3. { x : x $\in$ R , - 8 < x $\le$ - 5} can be written as

Accepted Answer

( -8 , -5 ]

Answer

( -8 , -5 )

Answer

( -5 , - 8 ]

Answer

[ -8 , -5 )

Question 4

4. Power set of { 0 } is

Accepted Answer

{ $\in$ , {0} }

Answer

{ $\in$ , 0 }

Answer

{ { $\in$ }, {0} }

Answer

{ {0} }

Question 5

5. The shaded area represents

Accepted Answer

A  <math>\cup</math> B

Answer

U - { A $\in$ B }

Answer

A  <math>\cap</math> B

Answer

Question 6

6. The white area represents in set A

Accepted Answer

A - B

Answer

Ac

Answer

B - A

Answer

A <math>\cap</math>B

Question 7

7. $\in$ ' is :

Accepted Answer

U

Answer

U'

Answer

Answer

None

Question 8

8. If A = {1,2,3,4,5,6,7} & B = { 7,8,9,10} , then A - B is :

Accepted Answer

None of these

Answer

{1,2,3,4,5,6,8,9,10 }

Answer

{ 3,4,8,10}

Answer

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

Question 9

9. ( A $\in$ B )^'is

Accepted Answer

A' $\in$ B'

Answer

A' $\in$ B'

Answer

( A $\in$ B)^'

Answer

A <math>\cup</math>B

Question 10

10. n ( X $\in$ Y ) = 50, n ( X ) = 28, n ( Y ) = 32, n (X ∩ Y) = ?

Accepted Answer

10

Answer

- 10

Answer

60

Answer

20

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