Question

If A = {a, b, c, d} and B = {a, e, i, o, u}, then sets A and B are

• A. joint sets
• B. disjoint sets
• C. equivalent sets
• D. equal sets

Answer 1

The correct option is A joint sets

Two sets A and B are said to be equal sets if they contain the same elements.Hence A and B are not equal sets

Two sets A and B are said to be equivalent sets if they contain the same number of elements. Set A has 4 elements while set B has 5 elements. Hence A and B are not equivalent sets

Two sets A and B are said to be overlapping/ joint sets if they contain at least one element in common.

A = {a, b, c, d} and B = {a, e, i, o, u} have element 'a' in common. Hence they are joint sets.