Answer :
Answer:
HHI = 1550
Explanation:
Herfindahl-Hirschman Index (HHI) is a popular measure of the concentration of the market and it is used to ascertain market competitiveness, usually pre- and post-Mergers and acquisitions (M&A) transactions. HHI is measured by summing the square of the idividual market share of firm competing in a market ad It has a range from close to 0 to 10,000.
HHI = 20² + 20² + 20² + 10² + 10² + 10² + 5² + 5²
=1550