Shamrock Company had net income of $30,000. On January 1, the number of shares of common stock outstanding were 8,000. On April 1, the company issued an additional 2,000 shares of common stock. There were no other stock transactions. The company's earnings per share is?

I must not be calculating the weighted-average common shares outstanding correctly because I keep coming up with $3.21, which is not one of the multiple choice answers provided.

Can you tell me what the company's earnings per share is?