Arithmetic for pupil teachers

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Συχνά εμφανιζόμενοι όροι και φράσεις

Δημοφιλή αποσπάσματα

Σελίδα 22 - To reduce a mixed number to an improper fraction. Multiply the whole number by the denominator of the fraction, and to the product add the given numerator.
Σελίδα 75 - Now -^ of 1 is a compound fraction, whose value is found by multiplying the numerators together for a new numerator, and the denominators for a new denominator.
Σελίδα 59 - If 20 men can perform a piece of work in 12 days, how many men will accomplish three times as much in one-fifth of the time ? Ans.
Σελίδα 189 - A room is 20 ft. long, 16 ft. wide, and 12 ft high. What is the distance from one of the lower corners to the opposite upper corner?
Σελίδα 55 - If 248 men, in 5 days, of 11 hours each, can dig a trench 230 yards long, 3 wide, and 2 deep, in how many days, of 9 hours...
Σελίδα 136 - If a piece of work can be finished in 45 days by 35 men, and if the men drop off by 7 at a time at the end of every 15 days, how long will it be before the work is finished ? 13.
Σελίδα 169 - A partnership is an association of two or more persons for the purpose of conducting...
Σελίδα 52 - Ib., supposing the coet of manufacture to have risen in equal proportion ? (7) If the corn of 13 horses for 63 days cost £17. 6s. 8d. when corn is 4s. per bushel, how many horses will in 56 days consume corn to the value of £10. 13s.
Σελίδα 183 - ... bu. How many bushels did he buy? 29. A merchant sold \ of his stock at 12% gain ; £ of it at 15% gain; | of it at 20% gain; the remainder which cost $295 at 25%. What was his whole gain and rate of gain? 80. A merchant bought 40 gallons of molasses at 60 cents per gallon, and lost 15% by leakage. At what price per gallon must he sell the remainder to gain 133% on the total cost?
Σελίδα 40 - When four numbers are in proportion, the product of the extremes is equal to the product of the means.

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