SETS | NCERT | CLASS XI | QUIZ-1

If U = {2,3,5,7,11,13} and C = {2,3,5}, find C'

• {7,11,13}

• {7,9,11,13}

• {2,3,5}

• U

Tags

CCSS.HSS.CP.A.1

Which of the following represents the shaded region?

• A union B

• A intersect B

• A ⊂ B

• B ⊂ A

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.B.7

If every element in set A is also in set B, then...

• A is a subset of B
• B is a subset of A
• A = B
• A and B are disjoint

Tags

CCSS.HSS.CP.A.1

Set D is the set of the distinct letters in the word mathematics. Write the set using the Roster method.

• D = {m, a, t, h, e, m, a, t, i, c, s}

• D = {m, a, t, h}

• D = {m, a, t, h, e, i, c, s}

• D = {m, a, t, h, i, c, s}

Which of the following is the symbol for null set?

• ∅

•  $\subset$  

•  $\in$  

•  $\not\subset$  

Which of the following means proper subset?

•  $\subset$  

•  $\subseteq$  

•  $\in$  

• =

How many senior boys play football but do not wrestle?

• 9
• 12
• 18
• 104

Tags

CCSS.HSS.CP.A.1

Out of 800 boys in a school, 224 played cricket, 240 played hockey and 336 played basketball. Of the total, 64 played both basketball and hockey; 80 played cricket and basketball and 40 played cricket and hockey; 24 played all the three games. The number of boys who did not play any game is.

• 160

• 240

• 128

• 216

A set has n elements, then the, number of elements in its power set is ?

• 2n

• 2n - 1

• n

•  $2^n$  

If A and B are any two sets, then A ∩ (A ∪ B) is equal to

•  $A\cup B$  

•  $A\cap B$  

• A

• B