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### Grade 8 - Mathematics4.51 Sets and Relations Review Test

 Q 1: If A = {1,2,3,4} and B = {a,b} write the Cartesian product of A X B.{(1,a), (1,b), (2,a), (2,b), (3,a), (3,b), (4,a), (4,b)}{(1,a), (1,b), (2,a), (b,2), (3,a), (b,3), (4,a), (4,b)}{(1,a), (1,b), (2,a), (2,b), (3,a), (3,b), (4,a), (4,b)}{(1,a), (1,b), (2,a), (2,b), (a,3), (3,b), (4,a), (4,b)} Q 2: Find A È B, if A = {2,4} and B = {4,8}.{2,4,6}{2,4,6,8}{2,4,8}{4,6,8} Q 3: A = {8,16,24} and B = {16,24,32} then find B - A.{16,24,32}{}{8}{32} Q 4: A = {1,2,3,4,5,6} and B = {1,2,3,4,5,6} Which of the following represent A Ç B?universal setnull setset A Q 5: A = {2,3,5,7} and C = {4,6,8,10}, is these two sets disjoint or not.DisjointNot a disjoint Q 6: There are 64 persons in a group. Each of them eats either apple or plantain or both. Those who eat apples are 36 in number. The number those who eat both apples and plantain is 21. How many eat plantains only? 252843 Question 7: This question is available to subscribers only! Question 8: This question is available to subscribers only!