Mr. Brown's Account Book
The following is Mr. Brown’s private account for two weeks: First week, received $50 for salary, and spent $25 for clothing, $7 for board, $2 for washing, and $5 for sundries. Second week, received $50 for salary, loaned $35 to Tom Jones, paid $7 for board, $2 for washing, and $8 for sundries. How much did Mr. Brown have at the end of the two weeks?
Source: Joseph Ray’s New Practical Arithmetic, NY: American Book Company, 1905