Question

An investor bought a number of shares of stock for 1,600. After the price dropped by $10 per share, the investor sold all but 4 of her shares for 1,120. How many shares did she originally buy?

Answer 1

1120/4=280.

280x=1600

x=5.7? that's what I came up with. I hope I did it right and its of help to you.