12 lb. per hd. 19. What is the weight of 1250 guineas, - at 5 dwt. 6 gr. each? 20. Of 6 bolls victual, at Slb. 12 oz. averd. per peck? 21. How much ditching will a man make in 36 days, at the rate of 2 poles 1 yard 2 feet 9 inches per day? 22. If the interest of the national debt be as. rod: each second of time, how much does it amount to in an year? 7 23. ... How many square feet in the floor, walls, and roof of a room 16 feet long, 14lbroad, and 11 high? 2 5. ... many solid feet in a block marble.
|Title||:||An Introduction to Merchandize: containing a ... System of Arithmetic; a System of Algebra, Book-keeping in various forms, an account of the Trade of Great Britain, and the Laws and Practices which Merchants are chiefly interested in|
|Author||:||Robert HAMILTON (LL.D., F.R.S.E.)|