256 ANSWERS TO PROBLEMS 



CHAPTER XIII 



655. $299.00. 656. $465.00. 657. $23.50. 658. 14.3. 659. 53,8. 

 660. 150 bushels per acre. 661. $75. 662. 30,960 bushels; 11,040 

 bushels. 663. $5,520. 664. 15,480. 665. 180% more in the tiled. 

 667. 59; 118. 668. 24; 12. 669. 34; 17. 670. 21; 10. 671. 24; 

 48. 672. 5; 10; 2. 673. 12-inch; 20-inch. 674. 4-inch; 9-inch. 



CHAPTER XIV 



677. 113 square feet; 491 square feet; 804 square feet; 1,257 

 square feet; 37.7 feet; 78.5 feet; 100.5 feet; 125.7 feet. 679. 141.8 

 feet. 680. 160 feet. 681. 200 feet. 682. 29.1. 683. 11.4. 684. 

 10,800. 685. 9,570. 686. $237.60; $210.54; $27.06. 687. 150. 

 689. 11.3 feet. 690. 13.8 feet. 691. 14.9 feet; 17.8 feet. 693. 108 

 tons in 180 days. 694. 307. 695. 208. 697. 338,000; 169. 698 

 33.3 feet; 30 feet. 700. Use 4 square feet per cow. Diameter 

 11.3 feet; Height 28 feet. 701. Account of 30-pound feeding use 

 4 square feet per cow. Diameter 11.3 feet; Height 37 feet. 

 Better build two, each 20 or more feet high. 702. Diameter 16 

 feet; Height 32 feet. 703. Diameter 18 feet; Height 36 feet. Or 

 two, diameter 16 feet; Height 25 feet. 705. 100. 706. 96. 

 707. 13 tons more in square. 708. 28.3 feet. 709. 34.6 feet. 

 711. 126. 712. 95. 713. 153. 



CHAPTER XV 



722. 1,136 pounds. 723. 13.1 cents. 724. $27.72. 725. $56.52. 

 730. 84.8. 731. 201 pounds. 732. 8 cents. 733. 8 1/7 cents. 



CHAPTER XVI 



751. $3.28. 752. 640. 753. f acre. 754. $160 or 38%. 

 755. $22.40 and interest every 16 years. 756. 9.9%. 757. 2 1/7 

 acres. 758. 54,500. 759. $1,875; $1,575. 760. $530.40. 761. 

 $1,200. 762. $28.84. 763. $160. 764. $131.16. 765. $3.28. 

 766. $196.74. 767. $7,870. 768. $106.54. 769. $15,000. 770. 

 750,000,000. 771. 126,000,000. 772. $37,800,000. 773. 42,000,000. 

 774. 3,200. 775. 96,000. 776. 38,400,000. 777. $360. 778. 

 1,500; $60. 779. $11.40. 780. $154. 781. $124. 783. 102,000 

 pounds; 96,000 pounds; 84,000 pounds; 66,000 pounds. 784. 26 

 square inches; 5.1 inches; 5f inches. 785. 4.8 inches. 787. 933 

 pounds; 415 pounds; 2j times as strong. 788. 130 pounds. 789. 

 220 pounds. 790. 1,020 pounds; 960 pounds. 791. 310 pounds. 

 793. 1,600 pounds; 710 pounds. 794. 7.2 inches; 4 planks bolted 

 together. 795. 71 pounds. It would, of course, stand many times 

 this weight. 796. 67 pounds. 797. 62 pounds; 250 pounds; 560 

 pounds. 798. 76 pounds; 64 pounds; 76 pounds. 799. 23 feet. 

 800. 9.1 inches. 801. 12 inches, if yellow pine, to carry 1.5 tons. 



