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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.



 

1)  

 If A = {16, 24,28, 32, 36},  B = {8, 16, 24}  and C = { 4, 8, 12, 16, 20, 24,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




2)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




3)  

 If A = {12, 18,21, 24, 27},  B = {6, 12, 18}  and C = { 3, 6, 9, 12, 15, 18,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




4)  

 If A = {8, 12,14, 16, 18},  B = {4, 8, 12}  and C = { 2, 4, 6, 8, 10, 12,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




5)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




6)  

 If A = {12, 18,21, 24, 27},  B = {6, 12, 18}  and C = { 3, 6, 9, 12, 15, 18,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




7)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




8)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




9)  

 If A = {8, 12,14, 16, 18},  B = {4, 8, 12}  and C = { 2, 4, 6, 8, 10, 12,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




10)  

 If A = {8, 12,14, 16, 18},  B = {4, 8, 12}  and C = { 2, 4, 6, 8, 10, 12,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)  

A∪(BUC)  

A(B /C)  


Answer:_______________




 

1)  

 If A = {16, 24,28, 32, 36},  B = {8, 16, 24}  and C = { 4, 8, 12, 16, 20, 24,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 8 Answer: 16 Answer: 24 Answer: 28 Answer: 32 Answer: 36

A∪(BUC)   Answer: 16 Answer: 24

A(B /C)   Answer: 16 Answer: 24 Answer: 28 Answer: 32 Answer: 36


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {8,16,24} ∪ { 4, 8, 12, 16, 20, 24}

                 = {8,16,24}

 A ∪ ( B ∩ C)       = {16, 24,28, 32, 36} ∪ {8,16,24}

                              =  {8, 16, 24, 28, 32, 36}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 8,16,24} ∪ {4, 8, 12, 16, 20,24}

               =  { 4, 8, 12, 16, 20, 24}

       A ∩  (B ∪C )  =  { 16, 24, 28, 32, 36 } ∩ { 4, 8, 12, 16, 20, 24}  

 =  { 16,24}

(iii) A(B /C ) 

                B C  =  { 4, 8, 12, 16, 20, 24 } { 8, 16, 24 }

                           =  { 4, 12, 20 }

      A /(B /C )  =  { 16, 24, 28, 32, 36}   { 4, 12, 20 }

=  { 16, 24, 28, 32, 36 }

 



2)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 2 Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9

A∪(BUC)   Answer: 4 Answer: 6

A(B /C)   Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {2,4,6} ∪ { 1, 2, 3, 4, 5, 6}

                 = {2,4,6}

 A ∪ ( B ∩ C)       = {4, 6,7, 8, 9} ∪ {2,4,6}

                              =  {2, 4, 6, 7, 8, 9}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 2,4,6} ∪ {1, 2, 3, 4, 5,6}

               =  { 1, 2, 3, 4, 5, 6}

       A ∩  (B ∪C )  =  { 4, 6, 7, 8, 9 } ∩ { 1, 2, 3, 4, 5, 6}  

 =  { 4,6}

(iii) A(B /C ) 

                B C  =  { 1, 2, 3, 4, 5, 6 } { 2, 4, 6 }

                           =  { 1, 3, 5 }

      A /(B /C )  =  { 4, 6, 7, 8, 9}   { 1, 3, 5 }

=  { 4, 6, 7, 8, 9 }

 



3)  

 If A = {12, 18,21, 24, 27},  B = {6, 12, 18}  and C = { 3, 6, 9, 12, 15, 18,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 6 Answer: 12 Answer: 18 Answer: 21 Answer: 24 Answer: 27

A∪(BUC)   Answer: 12 Answer: 18

A(B /C)   Answer: 12 Answer: 18 Answer: 21 Answer: 24 Answer: 27


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {6,12,18} ∪ { 3, 6, 9, 12, 15, 18}

                 = {6,12,18}

 A ∪ ( B ∩ C)       = {12, 18,21, 24, 27} ∪ {6,12,18}

                              =  {6, 12, 18, 21, 24, 27}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 6,12,18} ∪ {3, 6, 9, 12, 15,18}

               =  { 3, 6, 9, 12, 15, 18}

       A ∩  (B ∪C )  =  { 12, 18, 21, 24, 27 } ∩ { 3, 6, 9, 12, 15, 18}  

 =  { 12,18}

(iii) A(B /C ) 

                B C  =  { 3, 6, 9, 12, 15, 18 } { 6, 12, 18 }

                           =  { 3, 9, 15 }

      A /(B /C )  =  { 12, 18, 21, 24, 27}   { 3, 9, 15 }

=  { 12, 18, 21, 24, 27 }

 



4)  

 If A = {8, 12,14, 16, 18},  B = {4, 8, 12}  and C = { 2, 4, 6, 8, 10, 12,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 4 Answer: 8 Answer: 12 Answer: 14 Answer: 16 Answer: 18

A∪(BUC)   Answer: 8 Answer: 12

A(B /C)   Answer: 8 Answer: 12 Answer: 14 Answer: 16 Answer: 18


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {4,8,12} ∪ { 2, 4, 6, 8, 10, 12}

                 = {4,8,12}

 A ∪ ( B ∩ C)       = {8, 12,14, 16, 18} ∪ {4,8,12}

                              =  {4, 8, 12, 14, 16, 18}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 4,8,12} ∪ {2, 4, 6, 8, 10,12}

               =  { 2, 4, 6, 8, 10, 12}

       A ∩  (B ∪C )  =  { 8, 12, 14, 16, 18 } ∩ { 2, 4, 6, 8, 10, 12}  

 =  { 8,12}

(iii) A(B /C ) 

                B C  =  { 2, 4, 6, 8, 10, 12 } { 4, 8, 12 }

                           =  { 2, 6, 10 }

      A /(B /C )  =  { 8, 12, 14, 16, 18}   { 2, 6, 10 }

=  { 8, 12, 14, 16, 18 }

 



5)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 2 Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9

A∪(BUC)   Answer: 4 Answer: 6

A(B /C)   Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {2,4,6} ∪ { 1, 2, 3, 4, 5, 6}

                 = {2,4,6}

 A ∪ ( B ∩ C)       = {4, 6,7, 8, 9} ∪ {2,4,6}

                              =  {2, 4, 6, 7, 8, 9}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 2,4,6} ∪ {1, 2, 3, 4, 5,6}

               =  { 1, 2, 3, 4, 5, 6}

       A ∩  (B ∪C )  =  { 4, 6, 7, 8, 9 } ∩ { 1, 2, 3, 4, 5, 6}  

 =  { 4,6}

(iii) A(B /C ) 

                B C  =  { 1, 2, 3, 4, 5, 6 } { 2, 4, 6 }

                           =  { 1, 3, 5 }

      A /(B /C )  =  { 4, 6, 7, 8, 9}   { 1, 3, 5 }

=  { 4, 6, 7, 8, 9 }

 



6)  

 If A = {12, 18,21, 24, 27},  B = {6, 12, 18}  and C = { 3, 6, 9, 12, 15, 18,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 6 Answer: 12 Answer: 18 Answer: 21 Answer: 24 Answer: 27

A∪(BUC)   Answer: 12 Answer: 18

A(B /C)   Answer: 12 Answer: 18 Answer: 21 Answer: 24 Answer: 27


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {6,12,18} ∪ { 3, 6, 9, 12, 15, 18}

                 = {6,12,18}

 A ∪ ( B ∩ C)       = {12, 18,21, 24, 27} ∪ {6,12,18}

                              =  {6, 12, 18, 21, 24, 27}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 6,12,18} ∪ {3, 6, 9, 12, 15,18}

               =  { 3, 6, 9, 12, 15, 18}

       A ∩  (B ∪C )  =  { 12, 18, 21, 24, 27 } ∩ { 3, 6, 9, 12, 15, 18}  

 =  { 12,18}

(iii) A(B /C ) 

                B C  =  { 3, 6, 9, 12, 15, 18 } { 6, 12, 18 }

                           =  { 3, 9, 15 }

      A /(B /C )  =  { 12, 18, 21, 24, 27}   { 3, 9, 15 }

=  { 12, 18, 21, 24, 27 }

 



7)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 2 Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9

A∪(BUC)   Answer: 4 Answer: 6

A(B /C)   Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {2,4,6} ∪ { 1, 2, 3, 4, 5, 6}

                 = {2,4,6}

 A ∪ ( B ∩ C)       = {4, 6,7, 8, 9} ∪ {2,4,6}

                              =  {2, 4, 6, 7, 8, 9}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 2,4,6} ∪ {1, 2, 3, 4, 5,6}

               =  { 1, 2, 3, 4, 5, 6}

       A ∩  (B ∪C )  =  { 4, 6, 7, 8, 9 } ∩ { 1, 2, 3, 4, 5, 6}  

 =  { 4,6}

(iii) A(B /C ) 

                B C  =  { 1, 2, 3, 4, 5, 6 } { 2, 4, 6 }

                           =  { 1, 3, 5 }

      A /(B /C )  =  { 4, 6, 7, 8, 9}   { 1, 3, 5 }

=  { 4, 6, 7, 8, 9 }

 



8)  

 If A = {4, 6,7, 8, 9},  B = {2, 4, 6}  and C = { 1, 2, 3, 4, 5, 6,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 2 Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9

A∪(BUC)   Answer: 4 Answer: 6

A(B /C)   Answer: 4 Answer: 6 Answer: 7 Answer: 8 Answer: 9


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {2,4,6} ∪ { 1, 2, 3, 4, 5, 6}

                 = {2,4,6}

 A ∪ ( B ∩ C)       = {4, 6,7, 8, 9} ∪ {2,4,6}

                              =  {2, 4, 6, 7, 8, 9}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 2,4,6} ∪ {1, 2, 3, 4, 5,6}

               =  { 1, 2, 3, 4, 5, 6}

       A ∩  (B ∪C )  =  { 4, 6, 7, 8, 9 } ∩ { 1, 2, 3, 4, 5, 6}  

 =  { 4,6}

(iii) A(B /C ) 

                B C  =  { 1, 2, 3, 4, 5, 6 } { 2, 4, 6 }

                           =  { 1, 3, 5 }

      A /(B /C )  =  { 4, 6, 7, 8, 9}   { 1, 3, 5 }

=  { 4, 6, 7, 8, 9 }

 



9)  

 If A = {8, 12,14, 16, 18},  B = {4, 8, 12}  and C = { 2, 4, 6, 8, 10, 12,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 4 Answer: 8 Answer: 12 Answer: 14 Answer: 16 Answer: 18

A∪(BUC)   Answer: 8 Answer: 12

A(B /C)   Answer: 8 Answer: 12 Answer: 14 Answer: 16 Answer: 18


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {4,8,12} ∪ { 2, 4, 6, 8, 10, 12}

                 = {4,8,12}

 A ∪ ( B ∩ C)       = {8, 12,14, 16, 18} ∪ {4,8,12}

                              =  {4, 8, 12, 14, 16, 18}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 4,8,12} ∪ {2, 4, 6, 8, 10,12}

               =  { 2, 4, 6, 8, 10, 12}

       A ∩  (B ∪C )  =  { 8, 12, 14, 16, 18 } ∩ { 2, 4, 6, 8, 10, 12}  

 =  { 8,12}

(iii) A(B /C ) 

                B C  =  { 2, 4, 6, 8, 10, 12 } { 4, 8, 12 }

                           =  { 2, 6, 10 }

      A /(B /C )  =  { 8, 12, 14, 16, 18}   { 2, 6, 10 }

=  { 8, 12, 14, 16, 18 }

 



10)  

 If A = {8, 12,14, 16, 18},  B = {4, 8, 12}  and C = { 2, 4, 6, 8, 10, 12,} then find 

(i)  A∪(B ∩ C)   (ii)  A∪(B∪C)    (iii)  A\(C\B )

A∪(B∩C)   Answer: 4 Answer: 8 Answer: 12 Answer: 14 Answer: 16 Answer: 18

A∪(BUC)   Answer: 8 Answer: 12

A(B /C)   Answer: 8 Answer: 12 Answer: 14 Answer: 16 Answer: 18


SOLUTION 1 :

Solution:

(i)  A ∪ ( B ∩ C)

                B C  = {4,8,12} ∪ { 2, 4, 6, 8, 10, 12}

                 = {4,8,12}

 A ∪ ( B ∩ C)       = {8, 12,14, 16, 18} ∪ {4,8,12}

                              =  {4, 8, 12, 14, 16, 18}

(ii)  A ∪ (B∪C)     

   B ∪ C  =  { 4,8,12} ∪ {2, 4, 6, 8, 10,12}

               =  { 2, 4, 6, 8, 10, 12}

       A ∩  (B ∪C )  =  { 8, 12, 14, 16, 18 } ∩ { 2, 4, 6, 8, 10, 12}  

 =  { 8,12}

(iii) A(B /C ) 

                B C  =  { 2, 4, 6, 8, 10, 12 } { 4, 8, 12 }

                           =  { 2, 6, 10 }

      A /(B /C )  =  { 8, 12, 14, 16, 18}   { 2, 6, 10 }

=  { 8, 12, 14, 16, 18 }