Question 1071079
Alex sold an article to James to gain 20%.
 There after James sold the same article to Michael to gain 25%.
 If the sales to Michael yielded $67.50,
 find what it cost Alex to purchase the article.
:
let x = original purchase price
:
1.25(1.2x) = 67.50
1.5x = 6750
x = 67.50/1.5
x = $45