ANSWERS TO PROBLEMS 



p. 10. 3. 28-06 ft. 6. 25-06 in. 



p. 21. 7. 3776 sq. ft., 7 % 10. 255-43 sq. cm., 232-26 c.c. 



16. 284-4 c.c 17. 1-5 in., 2-9 in. 



p. 38. 21. 5-12 in. beneath table top at centre. 23. 0-722 in. 



p. 43. 24. 6-88 ft. from end. 28. 30, 24, 20, 16, 15 cm., 24 gm. 



30. 18 cm. from the centre, 



p. 58. 35. Sp. gr. 8-3. 38. Sp. gr. 0-65. 42. 3 Ibs., 3-44 Ibs. 



44. Sp. gr. 4-19. 46. Sp. gr. 0-705. 47. 8-36 ; 1. 



48. 0-6 in. 



p. 69. 53. 1036 gm. per sq. cm. 59. 27-2 in. 61. 2-72 in., 4-72 in. 



p. 86. 69. 59 C. 72. 610-4 c.c. 



p. 112. 84. 100 gm. water dissolve 7-99 gm. solid at 15 C. 



85. 100 gm. 88. 66-75 gm. 89. 9-63 Ibs. 



p. 135. 103. 821-3 c.c. 



p. 158. 126. 111-1 gm. or 1240 litres, 



p. 176 142. 55-3 % 143. 2-5 gm. chalk. 



178 



