256. A and B undertake a piece of work; A works § of the time, and does 1/2 of it; and B works the rest of the time, and finishes the job. How much ought A to receive, if B receives 8 per hour?

257. How much will 16f gross of screws cost @ 15 1/4 per gross?

258. If a student can do | of a piece of work in 2 hr., how long will it take him to do the whole job?

259. If a student does 7/11 of a piece of work in 4 hr., how long will it take him to finish the entire work ?

260. Make out the stock list for a box 2' 5" long, 1' 3 1/2" wide, and 7 1/2" deep. All dimensions are inside, and the box is made of 7/8" stock.

261. Estimate the exact number of square feet of lumber used in making the above box.

262. If 4/9 of a keg of nails cost $1.60, how much will the entire keg cost? Weight of keg is 100 lb.

263. A student pays $ 18 for his entrance fees, which is | of all the money that he has. How much has he ?

264. A board is 14' long, and contains 9 1/3 sq. ft. How wide is it? 1/3

265. A student spends $ 100 for a year's work at school. He earns 6/17 of it, and pays the balance from money he brought with him. How much was left, if he brought $ 75 with him?

266. A certain job cost $ 1.46, of which § was for stock, 1/10 for profit, and the balance for labor @ 8 per hour. How much labor was furnished ?

267. Measure with a tape a given lot of land, and estimate the number of square feet in its area.

268. Estimate the amount of lumber in a given lumber pile.

Note. - This is done by approximation ; estimate the amount of an average layer, and multiply it by the number of layers or courses.

269. A job cost $3.15; § of the cost was for material, and \ of the price of the material equaled the cost of the labor. What did the labor cost?

270. Measure a certain piece of furniture for a packing box, allowing 3/8" all around for packing. Make the stock list and estimate the cost.

271. A man paid $35 for repainting a house, which was 1/27 of the amount he paid for the property. What was it worth?

272. After painting the house, he sold the property for $ 1025. How much did he make?

273. A student was given 5 lb. of nails for a certain job, but used only 3f lb. At $4 per hundredweight, what was the value of those returned?

274. D receives 1/4 more pay than A. B receives 1/2 as much as A and B together. D receives 12 1/2 per hour, which is 1/2 of the total which the others receive. How much do A, B, and C each receive?

275. A lot of land is worth $250. The barn is worth $527, and the value of the house equals the value of the barn plus 7§ times that of the lot. What is the value of the entire property?

276. From the ground, or grade line, to the sills of a house, it is 24 5/8"', from there to the lower window sills, it is 30 1/4"; to the window header, it is 5' 2 7/8" ; to the frieze, it is 3' 4f "; to the edge of the eaves, it is 12 3/16". What is the entire height of the eaves from the ground ?

277. A certain piece of work requires 79 hr. of labor. A works .4 of it; B, .3 ; C, .15, and D finishes it. How much time does D work?

278. A receives $.10 per hour; B, .7 as much; C, 3/4 as much, and D, 3/5 as much. How much does each receive per hour?

279. If B is worth 3/4 as much for 6 hours' work as A is for 8 hours' work, how much would he receive for 7 1/2 hours' work?

280. If D is worth 3/4 as much as B in the above problem, how long would he have to work to earn the same amount as B ?

281. If E, being a journeyman, can do 1/2 as much continuously as can A, B, C, and D, in problem 278, how much ought he to receive per hour?

282. If A can do a piece of work in 12 da. and B in 10 da., how many days ought they to take if they do it together?

283. If A and B can build a barn in 8 da., and A could do it alone in 12 da. how long would it take B to do it without help?

284. A and B contract to build a comcrib. It takes them 10 da., A doing § as much as B. What part does each do in a day?

285. If they are to receive $20 for the labor upon the job, what should be the share of each?

286. If a student makes a bookcase in 6 1/2 hr., how long will it take him to make 12 of them, if he saves 1/8 of his time by making a number?

287. At 2 7/8 per pound for nails, how many will $20| buy? Answer in decimals.

288. How many feet B. M. are there in a board which is 16' long and 9" wide?

289. How many feet B. M. are there in a pile of 2" X 6", 14' long, containing 140 pieces?

290. How many feet B. M. should be purchased to lay a matched floor 20' X 35', allowing 1/4 waste?

291. Allowing 2 lb. of nails to the square, how many nails will be necessary to lay the above floor?

292. Paying 60 per square for labor, how much will it cost to lay the above floor?

293. Make out the stock list for a piece of panel work which contains 4 panels, the outside dimensions of which are 4' long, 18" high. All rails, stiles, and muntins are to be 3" wide, and the panels are to fit into grooves 1/2" all around.

294. How many days' work will there be in laying 75,650 shingles, at the rate of 2000 per day?

295. If two men can lay 800' of flooring in a day, how many men will be required to lay 40,000' in 5 da. ?

296. At $.75per M for laying, how much will the labor cost upon a shingle roof 40' long, with rafters 14' long?

297. The cost of the material for a certain piece of work is 9/13 of its entire cost. $2.50 was paid for the labor. What was the price of the finished work ?

298. A plank is 2" X 16" and 24' long. How many feet B. M. are there in it ?

299. A timber is 10" X 16" and 32' long. How many feet B. M. are there in it?

300. Estimate the cost of the material in a certain piece of furniture.

301. What is the area of a floor 40' long, 16' wide at one end, and 24' at the other?

302. What will the labor cost upon the floor of the above room @ $.60 per square?

303. Nine men work 2 hr. each, moving a piece of furniture. Three of them receive 8 1/3; three, 7 1/2, and the others, 12 1/2 per hour. What did the job cost?

304. How much will it cost to paint an area 12' X 36' at a cost of 10 per square yard?