Miscellaneous examples in Arithmetic

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Δημοφιλή αποσπάσματα

Σελίδα 81 - If the increase in the number of male and female criminals be 1'8 per cent., while the decrease in the number of males alone is 4'G per cent., and the increase in the number of females is 9 '8; compare the number of male and female criminals respectively.
Σελίδα 20 - A father dying, left his son a fortune, J of which he spent in 8 months ; | of the remainder lasted him 12 months longer; after which he had only $410 left. What did his father bequeath him ? Ans.
Σελίδα 44 - A cask A contains 12 gallons of wine and 18 gallons of water; and another cask B contains 9 gallons of wine and 3 gallons of water; how many gallons must be drawn from each cask so as to produce by their mixture 7 gallons of wine and 7 gallons of water t 33.
Σελίδα 40 - A wall was to be built 700 yards long in 29 days. Now, after 12 men had been employed on it for 11 days, it was found that they had completed only 220 yards of the wall. It is required...
Σελίδα 17 - 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 each...
Σελίδα 51 - A person invests £4800 in the 4 per cents. at 80, and at the end of each year invests the dividend which becomes due in the same stock...
Σελίδα 74 - If a certain number of workmen can do a piece of work in 25 days, in what time will...
Σελίδα 41 - A shilling weighs 3 dwts. 15 grs., of which 3 parts out of 40 are alloy, and the rest pure silver. How much per cent, is there of alloy ; and what is the weight of pure silver ? Ans.1^ per cent., and 3 dwts.
Σελίδα 68 - If 5 men and 7 boys can reap a field of corn of 125 acres in 15 days; in how many days will 10 men and 3 boys reap a field of corn of 75 acres, each boy's work being one-third of a man's ? 14.
Σελίδα 74 - A person invests £1365 in the 3 per cents. at 91 ; he sells out £1000 stock when they have risen to 93|-, and the remainder when they have fallen to 85. Find his gain or loss.

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