308 Old-time Schools and School-books
If to my age there added be, One-half, one-third, and three times three, Six score and ten the sum will be; What is my age, pray shew it me ?
Problems from Walsh's Mercantile Arithmetic, Northampton, Massachusetts, 1807: —
If 8 boarders drink a barrel of cider in 12 days, how long would it laft if 4 more came among them ?
Anf. 8 days.