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### Grade 8 - Mathematics4.42 Difference of Two Sets - I

 If A and B are two sets then A-B = {x/x Î A and x Ï B}. Example: A = {a,b,c,d,e,f} and B = {a,c,f} then find A - B. Solution: A - B = {a,b,c,d,e,f} - {a,c,f} A - B = {b,d,e} Directions: Solve the following problems. Also write at least five examples of your own.
 Q 1: A = {10,20,30} and B = {20,40,60} then find A - B.{10,30}{10,20,30,40,60}None of these{10,20,30} Q 2: A = {7,8,9} and B = {8,9,10} then find A - B.None of these{10}{7,8,9}{7} Q 3: A = {2,3,5,7} and B = {3,5,7} then find A - B.None of these{2}{2,3,5,7}{2,3,5} Q 4: A = {1,2,3,4,5} and B = {2,4,6} then find A - B.{1,3,5,6}{3,5}{1,3,5} Q 5: A = {8,16,24} and B = {16,24,32} then find A - B.None of these{32}{16}{8} Q 6: A = {2,4,6} and B = {3,5,7} then find A - B.None of these{2,3,4,5,6}{3,5,7}{2,4,6} Q 7: A = {100,200,300,400} and B = {200,400,600} then find A - B.{600}None of these{}{100,300} Q 8: A = {5,10,15,20} and B = {10,20,30} then find A - B.{5,15}{}{5,10,15}{5,10,15,20} Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!