CASE IV.

270. In what time will $547.02 amount to $625.73, at 31%? 271. In what time will $65, at 3%, gain $9.18+ interest? 272. In what time will $290 amount to $348.74, at 6% ? 273. In what time will $240 gain $13.03 interest, at 5% ? 274. In what time will $53 gain $28.25 interest, at 6% ? 275. In what time will $2162.50 gain $1667.84 interest, at 9%?

276. In what time will $194.30 amount to $229.18, at 6% ? 277. The amount is $70.59, the principal is $66.88; what is the time, the rate being 6%?

278. The amount is $782.472, the principal is $380.905, the rate 6%; what is the time, allowing 365 days to the year? 279. In what time will $880 gain $160.76, at 3% interest? 280. The amount is $2011, the interest $11, the rate 12%; what is the time?

281. In what time will £50 gain £6 11 s. 3 d., at 5% ? 282. In what time will $160.20 gain $5.606, at 21% ? 283. In what time will $106.40 amount to $109.16, at 9%? 284. In what time will $785 gain $41.67, at 7% ? 285. In what time will $2637.50 gain $284.85, at 8% ? 286. In what time will $640 amount to $1684.80, at 9% ? 287. In what time will $100 double itself, at 15% ?

288. Jan. 1, 1878, I borrowed $1200, at 6%; when will I owe $1500?

289. In what time will $325.41 amount to $1522.88, at 10%? 290. In what time will $3250 produce $390 interest, at 12%? 291. The interest is $218.62, the principal $551.20; what is the time, if the rate is 6% ?

292. In what time will $217.183 gain $62.441, at 6% ? 293. In what time will $182.25 gain $38.05, at 7% ?

294. The interest is $2.89, the principal is $63.45, the rate is 7%; what is the time?

295. In what time will $1008 gain $2.10, at 21% ?

296. In what time will $50.125 amount to $202.482, at 8%? 297. In what time will $21.10 gain $.99, at 9% ?

COMPOUND INTEREST.

298. WHAT is the compound interest of $360 for 5 yr., at 5% ?

299. Find the compound interest of $180 for 3 yr. 5 mo., at 6%.

300. Find the interest of $400, at 4%, compounded for 6 yr. 301. Find the amount of $90, at compound interest, for 4 yr. 3 mo., at 51%.

302. Find the compound interest of $600 for 7 yr. 10 da., at 4%.

5 mo.

303. Find the difference between the simple and the compound interest of $450 for 6 yr. 6 mo., at 8%.

304. What is the compound interest of $1600 for 8 yr., at 6% ?

305. What principal, at 5% compound interest, will yield $17 in 6 years?

306. What principal will amount to $171.091 in 6 years, at 6%, compounded semi-annually?

307. What principal will amount to $179.2638 in 9 years, at 2% compound interest?

308. What principal will produce $126.53 interest in 6 years, at 4%, compounded annually?

309. What sum of money at compound interest will amount to $416.02 in 9 years and 6 months, at 31% ?

310. What sum of money at 10% compound interest will amount to $6026.54 in 3 yr. 2 mo. and 12 da.?

311. The amount at compound interest is $640, the rate 21%, the time 10 years; what is the principal?

312. The compound interest is $8.1683, the time 7 years, the rate 3%; what is the principal?

313. The interest for 5 yr. 6 mo., compounded semi-annually, is $39.0974; what is the principal, if the annual rate is 7%?

314. The compound interest on a certain sum for 8 years, at 8%, is $28.724; what is the principal?

PARTIAL PAYMENTS.

315. A NOTE of $1041, dated July 12, 1877, interest at 5%, was indorsed as follows: March 5, 1878, $36; July 20, 1878, $600; what was due June 9, 1879?

316. A note of $800, dated Feb. 5, 1876, interest at 4%, has the following indorsements: June 13, 1876, $28.37;. Nov. 20, 1876, $12.50; March 20, 1877, $225; what was due June 21, 1877?

317. A note of $1000, dated June 1, 1875, interest at 7%, was indorsed as follows: August 2, 1875, $194.50; April 30, 1876, $29.50; June 28, 1876, $434; what was due December 1, 1877?

318.

Chicago, July 1, 1876.

Three months after date we promise to pay F. C. Harrison & Co., or order, two thousand four hundred dollars, for value received, with interest at 6%. M. R. THOMPSON & BRO.

Indorsements: July 1, 1877, $2000; Jan. 1, 1878, $400; what was due at settlement, Jan. 31, 1879?

319. A note of $1800, dated Feb. 1, 1878, interest at 8%, has the following indorsements: June 2, 1878, $25; July 1, 1878, $500; Dec. 5, 1878, $40; Jan. 15, 1879, $275; what was due July 1, 1879?

320. A note of $3000, dated Jan. 1, 1876, and bearing interest at 5%, was indorsed as follows: May 1, 1876, $50; July 12, 1877, $50; Dec. 15, 1877, $120; June 1, 1878, $500; Sept. 30, 1878, $1000; Dec. 1, 1878, $200; what was due Nov. 1, 1879?

321. A note of $900, dated Feb. 28, 1877, interest at 6%, was indorsed as follows: July 12, 1877, $500; Aug. 30, 1878, $20; Feb. 28, 1879, $25; June 1, 1879, $12; what was due Jan. 1, 1880?

322. A note of $2700.75, dated April 14, 1875, interest at 8%, was indorsed as follows: May 1, 1876, $1005.75; April 1, 1877, $100; March 2, 1878, $1200; Jan. 1, 1879, $50; what was due Dec. 10, 1879?

323. A note of $4000, dated Jan. 1, 1878, and drawing interest at 7%, has the following indorsements: Feb. 15, 1878, $25; March 30, 1878, $25; July 30, 1878, $750; Oct. 1, 1878, $50; Dec. 1, 1878, $2000; June 9, 1879, $1200; what was due Oct. 29, 1879?

324. A note of $360, dated Mar. 8, 1872, interest at 6%, was indorsed as follows: Apr. 8, 1873, $27; May 8, 1874, $75; June 1, 1875, $100; July 10, 1876, $30; what was due Sept. 1, 1877?

325. A note of $1750, dated New York, Jan. 1, 1876, with legal interest, was indorsed as follows: April 15, 1876, $300; July 1, 1877, $75; Oct. 10, 1877, $25.30; Dec. 13, 1877, $325; Mar. 17, 1878, $1100; what was due Feb. 14, 1879? 326. $5000. San Francisco, May 1, 1878. For value received, we jointly and severally promise to pay O. J. Smith, or order, five thousand dollars on demand, with interest at 10%. THOMAS CHILDS. WILLIAM AMES.

Indorsements: June 9, 1878, $100; Aug. 1, 1878, $2000; Sept. 30, 1878, $50; Nov. 1, 1878, $75; Jan. 29, 1879, $1500; Mar. 21, 1879, $250; what was due June 30, 1879?

327. A note of $2900, dated Trenton, N. J., June 28, 1877, was indorsed as follows: Jan. 8, 1878, $900; Sept. 1, 1878, $1000; Dec. 21, 1878, $12; May 20, 1879, $500; what was due Sept. 1, 1879, interest at 7% ?

328. $3000.

Philadelphia, June 15, 1876. Six months after date I promise to pay to the order of James N. Sanderson, three thousand dollars, with interest, without defalcation. Value received. F. P. WILLIAMSON.

Indorsements: Oct. 20, 1876, $200; Nov. 30, 1876, $350; Feb. 1, 1877, $800; July 10, 1877, $700; Aug. 30, 1877, $500; what was due Jan. 1, 1880?

329. A note of $400, dated Jan. 15, 1878, interest at 6%, was indorsed as follows: Feb. 1, 1878, $100; May 1, 1878, $50; June 1, 1879, $175; July 1, 1879, $40; what was due Jan. 1, 1880?

PRESENT WORTH AND DISCOUNT.

330. WHAT is the present worth of $160 due in 3 yr. 6 at 7% ?

mo.,

331. Find the difference between the interest and the discount of $385, due in 2 years 5 months and 10 days, at 6%. 332. How much do I gain by borrowing money at 6%, to pay a debt of $10000, due in 1 yr., discounted at 7% ? 333. What is the discount on $3640, due in 2 years 3 months and 20 days, at the rate of 8% per annum? 334. What is the present worth of $150.75, due in 51⁄2 years, at 5%?

335. If I receive 5% less than the face of a bill for $2200, due in 9 mo., what do I lose, money being worth 6% a year? 336. What is the discount on $1700, due in 18 months, at 4% ?

337. What is the present worth of $25.75, due in 2 years, at 9% ?

338. What is the present worth of $1660, due in 93 days, at 12% ?

339. What is the discount on $197.98, due in 3 yr. 12 da., at 3% ?

4 mo.

340. Which is the more profitable, $500 due in 18 months, at 9%, or $435 cash?

341. What is the present worth of $640.18, due in 9 mo., at 41% ?

342. If I am allowed a discount of 6% from the face of a bill for $8000, due in 15 mo., do I gain or lose, and how much, by borrowing the proper amount to pay the bill, at 5% interest?

343. What is the discount on $2150.60, due in 60 days, at 7% ?

344. What is the present worth of $1100, due in 7 mo., at 5%?

345. What is the discount on $378.80, due in 5 mo. 11 da., at 4% ?