Section: Math

68) Sales for a business were $4 million more the second year than the first, and sales for the third year were double sales of year two. If sales of the third year were $48 million, what were sales in millions of dollars for the first year? 

1. 10
2. 15
3. 20
4. 25

Answer 3 is correct. Divide year three by two to get year two total. Subtract four from that to get the year one total. Answer should be 20.