Answer: b. 22,500
Explanation:
J should use the total number of outstanding common stock at end of year to calculate 2018 basic earnings.
As a result of the Stock-split, the shares are split into 2 for 1.
There were 10,000 shares split so;
= 10,000 * 2
= 20,000
On the 1st of July, 5,000 shares were issued. This means that up till December 2021, the stock was outstanding for 6 months.
This will reflected by;
= 5,000 * 6/12
= 2,500 shares
Total shares = 20,000 + 2,500
= 22,500 shares