Graduated exercises in arithmetic


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Σελίδα 114 - A person invests £1365 in the 3 per cents. at 91 ; he sells out £1000 stock when they have risen to 93J, and the remainder when they have fallen to 85. How much does he gain or lose by the transaction ? If he invests the produce in 4£ per cepts.
Σελίδα 72 - 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 150 - Two partners, A and B, gained £ 140 by trade ; A's money was 3 months in trade, and his gain was ,.£60 less than his stock; and B's money, which was <£50 more than A's, was in trade 5 months. What was A's stock ? Ans.
Σελίδα 75 - I sell it to gain 17^ per cent.? 3. Of 32 selected candidates for the East Indian Civil Service in 1859, 3 were above 20 years of age when they went to India, 4 above 21, 12 above 22 and 23 respectively, and 1 above 24. From these data find what is the average age at which the men went to India. 4.
Σελίδα 139 - Of the boys in a school, one-third are over 15 years of age, one-third between 10 and 15. A legacy of ¿£100 can be exactly divided amongst them by giving 10s. to each boy over 15, 6«.
Σελίδα 148 - If a man rows 10 miles in 2 hours and a half against a stream, the rate of which is 3 miles an hour, how long would he be in rowing 5 miles with the stream ? 6.
Σελίδα 148 - The content of a cistern is the sum of two cubes whose edges are 10 inches and 2 inches, and the area of its base is the difference of two squares whose sides are 1¿ and If feet.
Σελίδα 117 - A person sells out of the 3 per cents, at 96, and invests his money in railway 5 per cent, stock at par ; find how much per cent, his income is increased.
Σελίδα 30 - If 2 horses be worth as much as 5 oxen and 3 oxen as much as 16 sheep ; what will be the value of a horse if the price of a sheep is £3 15s.? (15) If a certain MS. fill 6 printed sheets, each containing 32 pages and each page 24 lines with 9 words in each line; how many lines of 12 words each must there be in a page in order that another similar MS. twice as long may fill 3 sheets each containing 48 pages P PRACTICE.
Σελίδα 75 - ... as large in a fifth part of the time, if they work the same number of hours in the day, supposing that 2 of the second set can do as much work in an hour as 3 of the first set?

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