Ivanhoe Inc. uses a calendar year for financial reporting. The company is authorized to issue 9,160,000 shares of $ 12 par common stock. At no time has Ivanhoe issued any potentially dilutive securities. Listed below is a summary of Ivanhoes common stock activities.

1.		Number of common shares issued and outstanding at December 31, 2018		2,130,000
2.		Shares issued as a result of a 12% stock dividend on September 30, 2019		255,600
3.		Shares issued for cash on March 31, 2020		1,840,000
		Number of common shares issued and outstanding at December 31, 2020		4,225,600
4.		A 2-for-1 stock split of Ivanhoes common stock took place on March 31, 2021

(a)

Compute the weighted-average number of common shares used in computing earnings per common share for 2019 on the 2020 comparative income statement.

shares

(b)Compute the weighted-average number of common shares to be used in computing earnings per common share for 2020 on the 2020 comparative income statement.

(c) Compute the weighted-average number of common shares to be used in computing earnings per common share for 2020 on the 2021 comparative income statement.

(d)Compute the weighted-average number of common shares to be used in computing earnings per common share for 2021 on the 2021 comparative income statement.