In April 2011, Consolidated Edison (ED) stock cost $50 per share and yielded 5% per year in dividends, while National Grid (NGG) stock cost $50 per share and yielded 6% per year in dividends. If you invested a total of $51,000 in these stocks and earned $2,710 in dividends in a year, how many shares of each stock did you purchase? (Assume the dividend rate was unchanged for the year.)

ED shares

NGG shares