Question

If n(A) = 3, n(B) = 2 and if (x, 4), (y, 5), (z, 4) are three distinct elements of A x B, then

• A. A = {x, y, z} and B = {4, 5}
• B. A = {4, 5} and B = {x, y, z}
• C. A ={y, z, 5} and B = {x, 4}
• D. A = {4, x, y} and B = {5, z}

Answer 1

The correct option is A

A = {x, y, z} and B = {4, 5}

Here A = set of first elements

B = set of second elements