A Mental Arithmetic

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American Book Company, 1897 - Mental arithmetic - 176 pages
 

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Page 172 - CUBIC MEASURE Table 1728 Cubic Inches (cu. in.) = 1 Cubic Foot . . . cu. ft. 27 Cubic Feet = 1 Cubic Yard . . . cu. yd. 128 Cubic Feet = 1 Cord C. A
Page 171 - SQUARE MEASURE Table 144 Square Inches (sq. in.)= 1 Square Foot 9 Square Feet = 1 Square Yard 30J Square Yards = 1 Square Rod 160 Square Rods = 1 Acre . . . 640 Acres = 1 Square Mile sq. ft. sq. yd. sq. rd. A. sq. mi.
Page 172 - LIQUID MEASURE Table 4 Gills (gi.) = 1 Pint . . . . pt. 2 Pints = 1 Quart. . . . qt. 4 Quarts = 1 Gallon . . . gal. DRY MEASURE
Page 172 - DRY MEASURE Table 2 Pints (pt.) = 1 Quart . . . . qt. 8 Quarts = 1 Peck .... pk. 4 Pecks = 1 Bushel .... bu. AVOIRDUPOIS WEIGHT
Page 73 - 19. If 4 men can do a piece of work in 8| days, in how many days can 1 man do the same work ? In how many days can
Page 82 - 15. If 4 men can do a piece of work in 6 days, how long will it take 3 men to do it
Page 84 - 32. A can do a piece of work in 4 days, and B can do it in 7 days. How long will it take both together to do the work
Page 149 - 12. If 3 men can do a piece of work in 8 days, how many men can do it in 6 days?
Page 144 - What per cent above cost must a man mark his goods in order that he may take off 10% from the marked price and still make 20% on the cost?
Page 172 - A cord of wood or stone is a pile 8 ft. long, 4 ft. wide, and 4 ft. high.

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