Wentworth & Hill's Examination Manuals: No. I. Artihmetic (Google eBook)

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Ginn, Heath,, 1884 - Arithmetic - 140 pages
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Page 40 - 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.
Page 75 - Find its diameter, admitting that the area of a circle varies as the square of its diameter.
Page 39 - ... 15 men build 900 feet long and 15 feet high in 21 days of 9 hours ? 3. Subtract 0.992748 from 1. 4. Find the cost of 3 acres 145 square rods of land, at $ 120 an acre. 5. What is the price of a silver bowl weighing 5 pounds 9 ounces 8 dwts., at $1.40 per ounce? 77. 1. How many tiles, each 7 inches square, will be required to cover a floor 19 feet 3 inches by 13 feet 5 inches ? 2. Extract the cube root of 0.145531576. 3. If a tradesman, by selling an article at $1.98, loses 17| per cent, what...
Page 99 - J ? 13. A merchant owning ^ of a ship, sold \ of his share ; what part of the ship did he sell ? What part did he keep ? 14.
Page 45 - The sides of two squares contain 77 yards 1 foot 9 inches, and 7 yards 2 feet 4 inches, respectively. Find the side of a square whose area is equal to the sum of the areas of the two squares.
Page 56 - In 24 days it is only half finished. How many additional men must he employ to finish the work in time ? 3. A cistern can...
Page 35 - If by selling wine at 15s. a gallon I lose 6 per cent., at what price must 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.
Page 123 - C pay severally towards the rent at the year's end ? 11. It is noticed that the water in a reservoir 38 feet long and 26 feet wide which is known to leak sinks one inch in 12 hours. A pipe discharging 60 gallons per minute will fill the reservoir in 45 hours, allowing for the leakage. Find within an inch the depth of the reservoir. (A cubic foot of water contains 6.25 gallons.) 12.
Page 92 - AT - d&r + ^t^hr = titftt : and .81-2.5.^ 441 of 32 of 0.45 3760 6. Gunpowder is composed of nitre, charcoal, and sulphur, in the proportion of 15, 3, and 2. A certain quantity of gunpowder is known to contain 20 cwt. of charcoal ; find its weight, and also the weight of nitre and of sulphur it contains. 7. Bought 360 gallons of wine at $2.60 a gallon ; paid for carriage, $ 17.20, and for duties, $86.50.
Page 134 - Find the additional expense of painting the ceiling at the same rate. 22. A ditch has to be made 360 feet long, 10 feet wide at the top and 3 feet wide at the bottom, the angle of the slope of each side being 45. Find the number of cubic yards to be excavated. 23. A circular pond has an area of 346 square yards. Find to the nearest penny the cost of fencing it round at 4s. 6d. per lineal yard. 24. A cubical block contains 1 cubic yard, 2 cubic feet, 541 cubic inches. Find the cost of covering...

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