Grade 8 - Mathematics 4.51 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.
31 32 33

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?
10 11 9