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

 Q 1: If A = {1,2,3,4} and B = {a}, the find A X B.{(a,1), (2,a), (3,a), (4,a)}{(1,a), (2,a), (3,a), (4,a)}{(a,x), (b,x), (c,x), (d,x)}{(1,a), (2,a), (a,a), (4,a)} Q 2: A = {a,e,i,o,u}, Find out the number of proper subsets. 313233 Q 3: A = {100,200,300,400} and B = {200,400,600}, then find symmetric difference of A and B.{}{100,300}{100,300,600}{600} Q 4: In a group of 50, 20 like tea while 21 like coffee. There is none who dislike both. How many persons like both coffee and tea? 10119 Q 5: X = {6,12,18,24,30}.n(X) = 5n(X) = 30n(X) = 18n(X) = 6 Q 6: 5 Î C, is this statement true or false ?FalseTrue Q 7: If U = {p,q,r,s,t}, A = {p,q,r} and B = {q,r,t} then (A Ç B)c = _____.{r}{q}{s} Q 8: If A = {2,4,6,8,10,12} and B = {a,e,i,o,u}, then find the number of ordered pairs in A X B.30161511 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!