Grade 8 - Mathematics 4.51 Sets and Relations Review Test

Q 1: If U = {p,q,r,s,t}, A = {p,q,r} and B = {q,r,t} then
A È B = _____. {p,q,r,t} {p,q,r,s} {q,r,s,t}

Q 2: A = {2,3,4,5} and B = {5,7} then find A Ç B. None of these {5} {5,7} {2,3,4,5,7}

Q 3: A = {2,4,6} and B = {2,4,6,8} then find A Ç B. {2,4,6} None of these {2,4,6,8}

Q 4: 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 5: A = {5,7,9,11}, B = {7,9,11} and C = {9,11} Find A È (B È C). {5,7,8,9,11} {5,7,9,11} {5,6,7,9,10,11} {5,7,9,10,11}

Q 6: If A = {a,e,i,o,u} and B = {y}, the find A X B. {(a,x), (b,x), (c,x), (d,x)} {(a,y), (e,y), (i,y), (o,y), (y,u)} {(1,a), (2,a), (3,a), (4,a)} {(a,y), (e,y), (i,y), (o,y), (u,y)}

Q 7: The null set is a subset of every set. True False

Q 8: A = {4,5,7} and B = {2,3,6} then A U B = ______? {4,5,7,3,6} {2,3,4,5,6} {2,3,4,5,6,7}

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