254 ANSWERS TO PROBLEMS 



405. $20.33. 406. $1,129,000,000. 407. 61,360,000. 408. 83.1; 

 9.6; 12.1; 97.0. 412. 16. 414. Slightly less than 27 inches. 

 415. 71 inches. 416. 71 inches; 71 inches. 417. 25 inches. 

 418. 62 inches; 62 inches. 419. 17.5 hands or 70 inches. 420. 70 

 inches. 421. 28 inches. 422. 9f inches. 424. 25.1 inches; 18.9 

 inches. 425. 19.9 inches. 427. 2.84 pounds; 2.61 pounds. 428. 

 8.7; 6.9. 429. 752; 1,401. 43p. 86.4, 431. A 10% increase of 

 feed produces an 81% increase in gain in weight; $300 with steers 

 at $8 per 100. 432. 2,557 pounds; 781 pounds; 1,468 pounds; 

 2,044pounds. 433. $31.47; $72.68; $118.64; $183.02. 434. $39.05. 

 435. $95.42. 436. $143.08. 437. $204.56. 438. $7.58; $22.37; 

 $24.44; $21.54. 439. About 26 months (middle third period); 

 About 18 months; About 10 months; About 5 months; At the 

 earliest possible date. Note: The average cost of any period is 

 reached at about the middle of the period. 440. 5.4 cents; 44.6. 441. 

 216. 442. 300; 516. 443. 12.8; 10.4. 444. $227.50. 445. 6.8. 

 446. 8.3. 447. 9.68 cents. 448. 13.28 cents. 449. 22.23 cents. 

 450. 10.67 cents. 451. 19.46 cents. 452. 9.56 cents. 453. 69.98. 

 454. $42.28. 455. $5.14. 456. $69.85. 457. $12.63. 458. $79.12. 

 459. 7,200 pounds; 4,320 pounds. 460. $828. 461. $352.80. 

 462. $209.50. 463. $143.30. 464. 68.4. 465. 33.6. 466. $3. 

 467. $4. 468. $3. 469. $2. 470. $1.50. 471. 15 cents. 472. $2 

 profit. 473. 65 cents. 474. 4,013. 475. 280,600,000; 233,800,000. 

 476. 1,600,000,000 dozen. 477. 50 cents; $140,300,000. 478. 

 $308,800,000. 479. $524,100,000. 480. 12. 481. 7.4. 482. 7. 

 483. 3.6. 484. 2. 485. 1.9. 



CHAPTER IX 



486. 4.6 hours; 41 minutes. 487. 85. 488. 2.2 hours; 0.26 hours. 

 489. 9.3. 490. 65.5. 491. 30 minutes; 10.4 minutes. 492. 19.9; 

 19.2. 193. 17.6 hours; 8.1 hours. 494. 41 cents; 17 cents. 495. 

 19 cents; 10 cents. 496. 9.6 cents; 4.0 cents. 497. 6.0 cents; 

 2.7 cents. 498. 3.1 cents; 2.3 cents. 499. $4.03; $1.64. 500. Rye 

 2.64 hours; 1.01 hours; 18.9 cents; 15.9 cents. Sweet potatoes 

 3.02 hours; 1.16 hours; 22.9 cents; 9.8 cents. Tomatoes 2.16 hours; 

 0.9 hours; 24.1 cents; 10.5 cents. Strawberries 26 minutes; 6.5 

 minutes; 5.8 cents; 2.4 cents. Beets 1.47 hours; 41 minutes; 10.8 

 cents; 6.7 cents. 



CHAPTER X 



502. 6,400 foot-pounds. 503. 1,200 foot-pounds. 504. 120,000 

 foot-pounds. 506. 400,000. 507. 50,000,000 foot-pounds; 

 30,000,000 foot-pounds. 508. 75 pounds. 510. 1\ miles per hour; 

 If miles per hour. 511. 1.2 horsepower. 512. 3.7. 513. 7.4 

 horsepower. 515. f. 516. 0.8; 0.96; 1.76. 517. 1.7 miles per hour. 

 518. 10 miles per hour; 5 miles per hour; 3.3 miles per hour; 1.25 

 miles per hour. 519. 3.3 miles per hour; 2.5 miles per hour. 



