earnings per share accounting

Each of the following are considered independent situations.

On January 1, 2019, Dalton Corporation had 840,000 common shares outstanding. On April 1, the corporation issued 160,000 new shares to raise additional capital. On July 1, the corporation declared and issued a 2 for 1 stock split. On November 1, the corporation purchased on the market 400,000 of its own outstanding shares and retired them.
Jade Corporation has 200,000 common shares outstanding throughout 2019. In addition, the corporation has 6,000, 20-year, 10% bonds issued at par in 2016. Each $1,000 bond is convertible into twenty-five (25) common shares after 9/23/20. During the year 2019, the corporation earned $420,000 after deducting all expenses. The tax rate was 40%.
Boston Company had 240,000 common shares outstanding during the year 2019. In addition, at December 31, 2019, 60,000 shares were issuable upon exercise of executive stock options, which require a $50 cash payment upon exercise (options granted in 2016). The average market price during 2019 was $60.

Instructions (4 Marks)

Calculate the weighted average number of shares to be used in calculating earnings per share for 2019

Instructions (4 Marks)

Calculate the proper earnings per share for 2019.

Instructions (3 Marks)

Calculate the number of shares to be used in determining diluted earnings per share for 2019.