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Of The Members Of Three Athletic Teams In A Certain School 21 Are In The Basketball Team 26 In Hockey Team And 29 In The Football Team

1) 43 2) 76 3) 49 4) None of these Solution: (1) B is the set of members who are in the basketball, F is the set of members who are in the... View Article

If N A Denotes The Number Of Elements In Set A And If N A 4 N B 5 And N A Intersection Of B 3 Then N A B Intersection Of B A

1) 8 2) 9 3) 10 4) 11 Solution: (2) n (A × B) ∩ (B × A) = n [(A ∩ B) × (B ∩ B) × (B ∩ A) × (A ∩ A)] = n [(A ∩ B) × 1 × (B ∩ A) × 1] = n... View Article

A Survey Shows That 63 Of The Americans Like Cheese Whereas 76 Like Apples If X Of The Americans Like Both Cheese And Apples Then

1) x = 39 2) x = 63 3) 39 ≤ x ≤ 63 4) None of these Solution: (3) n (A) = 76% n (C) = 63% n (C ⋃ A) = n (A) + n (C) - n (C ⋂ A) = 63 +... View Article

Out Of 800 Boys In A School 224 Played Cricket 240 Played Hockey And 336 Played Basketball

1) 128 2) 216 3) 240 4) 160 Solution: (C ⋃ H ⋃ B)’ = U - [C ⋃ H ⋃ B] = U - [n (C) + n (H) + n (B) - n (C ∩ H) - n (H ∩ B) - n (B ∩ C) +... View Article

In A Battle 70 Of The Combatants Lost One Eye 80 An Ear 75 An Arm 85 A Leg X Lost All The Four Limbs The Minimum Value Of X Is

1) 10 2) 12 3) 15 4) None of these Solution: (1) The combatants who lost an eye and an ear = (70 + 80 − 100)% = 50% The combatants who... View Article

If A And B Are Not Disjoint Sets Then N A Union Of B Is Equal To

1) n (A) + n (B) 2) n (A) + n (B) - n (A ∩ B) 3) n (A) + n (B) + n (A ∩ B) 4) n (A) + n (B) + n (A + B) 5) n (A) - n (B) Solution: (1) If... View Article

Given N U 20 N A 12 N B 9 N A Intersection Of B 4 Where U Is The Universal Set A And B Are Subset Of U Then N A Union Of B C

1) 17 2) 9 3) 11 4) 3 5) 16 Solution: n (U) = 20, n (A) = 12, n (B) = 9, n (A ∩ B) = 4 n (A ∪ B) = n (A) + n (B) - n (A ∩ B) = 12 + 9 -... View Article

Let A And B Be Two Sets Such That N A 0 16 N B 0 14 N A Union Of B 0 25 Then N A Intersection Of B Is Equal To

1) 0.3 2) 0.5 3) 0.05 4) None of these Solution: (3) n (A ∪ B) = n (A) + n (B) - n (A ∩ B) 0.25 = 0.16 + 0.14 - n (A ∩ B) n (A ∩ B) =... View Article

If N A 3 N B 6 And A Subset Of B Then The Number Of Elements In A Union Of B Is Equal To

1) 3 2) 9 3) 6 4) None of these Solution: (3) A ⊆ B A ⋃ B = B |A ⋃ B| = |B| n (B) = 6 n (A ⋃ B) = 6... View Article

Let U Be The Universal Set And A Union Of B Union Of C U Then A B Union Of B C Union Of C A Dash Is Equal To

1) A ⋃ B ⋃ C 2) A ⋃ (B ⋂ C) 3) A ⋂ B ⋂ C 4) A ⋂ (B ⋃ C) Solution: (3) (A – B) ∪ (B – C) ∪ (C – A) will majority of the parts except for A... View Article

Let A And B Be Two Sets Then A Union Of B Dash Union Of A Dash Intersection Of B Is Equal To

1) A' 2) A 3) B' 4) None of these Solution: (1) (A ⋃ B)’ ⋃ (A’ ∩ B) = A’... View Article

If A And B Are Two Sets Then A B Union Of B A Union Of A Intersection B Is Equal To

1) A ⋃ B 2) A ∩ B 3) A 4) B' Solution: (1) (A - B) ⋃ (B - A) ⋃ (A ⋂ B) = A ⋃ B... View Article

The Shaded Region In The Given Figure Is

1) A ⋂ (B ⋃ C) 2) A ⋃ (B ⋂ C) 3) A ⋂ (B - C) 4) A - (B ⋃ C) Solution: (2) The shaded region represents A ⋃ (B ⋂ C).... View Article

A Class Has 175 Students The Following Data Shows The Number Of Students Obtaining One More Subjects Mathematics 100 Physics 70 Chemistry 40

1) 35 2) 48 3) 60 4) 22 Solution: (3) Number of students in mathematics = 100 - [12 + 18 + 10] = 100 - 40 = 60... View Article

Archives

Of The Members Of Three Athletic Teams In A Certain School 21 Are In The Basketball Team 26 In Hockey Team And 29 In The Football Team

If N A Denotes The Number Of Elements In Set A And If N A 4 N B 5 And N A Intersection Of B 3 Then N A B Intersection Of B A

A Survey Shows That 63 Of The Americans Like Cheese Whereas 76 Like Apples If X Of The Americans Like Both Cheese And Apples Then

Out Of 800 Boys In A School 224 Played Cricket 240 Played Hockey And 336 Played Basketball

In A Battle 70 Of The Combatants Lost One Eye 80 An Ear 75 An Arm 85 A Leg X Lost All The Four Limbs The Minimum Value Of X Is

If A And B Are Not Disjoint Sets Then N A Union Of B Is Equal To

Given N U 20 N A 12 N B 9 N A Intersection Of B 4 Where U Is The Universal Set A And B Are Subset Of U Then N A Union Of B C

Let A And B Be Two Sets Such That N A 0 16 N B 0 14 N A Union Of B 0 25 Then N A Intersection Of B Is Equal To

If N A 3 N B 6 And A Subset Of B Then The Number Of Elements In A Union Of B Is Equal To

Let U Be The Universal Set And A Union Of B Union Of C U Then A B Union Of B C Union Of C A Dash Is Equal To

Let A And B Be Two Sets Then A Union Of B Dash Union Of A Dash Intersection Of B Is Equal To

If A And B Are Two Sets Then A B Union Of B A Union Of A Intersection B Is Equal To

The Shaded Region In The Given Figure Is

A Class Has 175 Students The Following Data Shows The Number Of Students Obtaining One More Subjects Mathematics 100 Physics 70 Chemistry 40

If N A An N Belongs To N Then N 5 Intersection N 7

If A Is Any Set Then

Let U Set 1 2 3 4 5 6 7 8 9 10 A Set 1 2 5 B Set 6 7 Then A Intersection Of B Dash Is

What Is Meant By Coherence

What Is The Function Of Capacitor

What Causes Resistance

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