do in a day ? How much would both together do How long would it take them both to do the whole 1 148. A cistern has 2 cocks ; the first will fill it in 3 hours, the second in 6 hours; how much of it would each fill in an hour ! How much would both together fill? How long would it take them both to fill it 149. A man and his wife found by experience, that, when they were both together, a bushel of meal would last them only 2 weeks; but wheh the man was gone, it would last his wife 5 weeks. How much of it did both together consume in 1 week? What part did the woman alone consume in 1 week? What part did the man alone consume in 1 week 1 How long would it last the man alone 150. If 1 man could build a piece of wall in 5 days, and another man could do it in 7 days, how much of it would each do in 1 day? How many days would it take them both to do it ! 151. A cistern has 3 cocks; the first would fill it in 3 hours; the second in 6 hours; the third in 4 hours; what part of the whole would each fill in 1 hour? and how long would it take them all to fill it, if they were all running at once 1 152. A and B together can build a boat in 8 days, and with the assistance of C they can do it in 5 days; how much of it can A and B build in 1 day ? how much of it can A, B, and C, build in 1 day ? how much of it can C build alone in 1 day ? how long would it take C to build it alone 7 zo 153. Suppose I would line 8 yards of broadcloth that is 14 yards wide, with shalloon that is # of a yard wide ; how many yards of the shalloon will line 1 yard of the broadcloth 7 how many yards will line the whole 1 & 154. If 7 yards of cloth cost 13 dollars, what will 10 yards ‘. o 12 155. If the wages of 25 weeks come to 75 dollars, what will be the wages of seven weeks : 156. If 8 tons of hay will keep 7 horses three months, how much will keep 12 horses the same time ! - g 157. If a staff 4 feet long cast a shadow 6 feet long, what is the length of a pole that casts a shadow 58 feet at the same time of day ! 158. If a stick 8 feet long cast a shadow 2 feet in length, what is the height of a tree which casts a shadow 42 feet at the same time of day ? 4 9. At 6 dollars per week, how many months’ board can I have for 100 dollars 160. A ship has sailed 24 miles in 4 hours; how long will it take her to sail 150 miles at the same rate 1 * 161. 30 men can perform a piece of work in 20 days; how many men will it take to perform the same work in 8 days s 162. 17 men can perform a piece of work in 25 days; in how many days would 5 men perform the same work 163. A hare has 76 rods the start of a greyhound, but the greyhound runs 15 rods to ten of the hare ; how many rods must the greyhound run to overtake the bare 7 164. A garrison has provision for 8 months, at the rate of 15 ounces per day; how much must be allowed per day, in order that the provision may last 17 months 7 165. If 8 men can build a wall 15 rods in length in 10 days, how many men will it take to build a wall 45 rods in length in 5 days? 166. If a quarter of wheat affords 60 ten-penny loaves, how many eight-penny loaves may be obtained from it ! & 167. Said Harry to Dick, my purse and money st -- * * * * * together are worth 16 dollars, but the money is hundred; but if I had half as many more as I now if # and + of his age, and 20 more were added to his age, the sum would be 3 times his age. What was his age 1 183. A man being asked how many sheep he had, answered, that if he had as many more, # as many more, and 24 sheep, he should have 100. How many had he? ARIT HIMETIC. THE Key contains an explanation of the plates, and the manner of using them. The manner of solving the examples in each section is particularly explained. All the most difficult of the practical ex- *# * 4 amples are solved in such a manner, as to show the |