there are approximately 2400 stocks traded on the New York s

there are approximately 2400 stocks traded on the New York stock exchange. yesterday\'s stock market report indecated that \"advancers led decliners by 5 to 3,\" If 720 of the stocks were unchanged yesterday, how many were \"decliners\"?

Solution

720 out of 2400 stocks remained unchanged yesterday. Thus 2400 - 720 = 1680 stocks experienced changes yesterday. Advancers led decliners 5 to 3 means that that the ratio of advancers to decliners was 5 to 3. Thus the number of decliners was 3/8(1680) = 630