In an organization, 40% of the employees are matriculates, 50% of the remaining are graduates, and the remaining 180 are postgraduates. How many employees are graduates?

180 employees are graduates.

Let total be T; matriculates = 40% of T, remaining = 60% of T.

Graduates = 50% of the remaining = 30% of T.

Postgraduates = 60% - 30% = 30% of T = 180, so T = 600.

Graduates = 30% of 600 = 180.

So 180 employees are graduates.