Question

A group of 4 persons is to be selected from 5 married couples, who are sitting in five different rows, a, b, c, d, and e. Each row can accommodate exactly one couple. If a person is selected from a row, which is marked by a vowel, then we need to select another person of opposite gender, from another row, which is also a vowel. In how many ways can the group be formed?

Answer 1

ae is the group of couple can be formed