Multiple choice general knowledge Index "BSE-Sensex" comprises of how many companies? 30 50 20 100 Reveal answer Fill a bubble to check yourself A Correct answer Explanation The BSE Sensex (Bombay Stock Exchange Sensitive Index) comprises 30 actively traded stocks representing various sectors. Option A is correct. The Nifty index has 50 companies, not Sensex. 20 and 100 are not the correct numbers for Sensex.