The civil service, army & university arithmetical guide

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Longmans, Green, Reader and Dyer, 1869 - Arithmetic - 63 pages
 

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Page 21 - If A and B together can perform a piece of work in 8 days, A and C together in 9 days, and B and C in 10 days : how many days would it take each person to perform the same work alone ? Ans.
Page 13 - If a certain number of workmen can do a piece of work in 25 days, in what time will...
Page 20 - At a siege it was found that a certain length of trench could be dug by the soldiers and navvies in 4 days, but that when only half the navvies were present it required 7 days to dig the same length of trench. What proportion of the work was done by the soldiers?
Page 12 - In Reaumur's thermometer the freezing point is zero and the boiling point 80° ; in Fahrenheit's thermometer the freezing point is 32° and the boiling point 212°. What will Reaumur's thermometer mark when Fahrenheit's marks 47°, and what will Fahrenheit's mark when Reaumur's marks 93° ? 10 A and B rent a pasture for £138 per annum ; A puts in 200 sheep and B 160, but at the end of six months they dispose of half their stock, and allow C to put in 120 ; what...
Page 14 - A train 88 yards long overtook a person walking along the line at the rate of 4 miles an hour, and passed him completely in ю seconds.
Page 30 - The first term of a ratio is called the antecedent, and the second term the consequent.
Page 10 - If 5 horses require as much corn as 8 ponies, and 15 quarters last 12 ponies for 64 days, how long may 25 horses be kept for £41. 5s. when corn is 22 shillings a quarter ? 28.
Page 10 - A tradesman marks his goods with two prices, one for ready money, and the other for one year's credit, allowing discount at 5 per cent. If the credit price be marked 12s.

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