Answer:
20 shares.
Explanation:
Starting price paid = 30 * x
Ending price received = 12 * x
Loss = 360
Difference = 30x - 12x = 360
Equation
30x - 12x = 360 Combine the terms on the left
18x = 360 Divide by 18
18x/18 = 360/18 Do the division
x = 20 << Answer
He bought 20 shares of the company originally.