5. 8 yr. 160 da. 7 hr. to hours. Ans. Counting two leap years, 73975 hr. 6. 4 wk. 3 da. 1 hr. 10 min. to min. Ans. 44710 min. 16. Find the number of days from March 21st to May 16th. more are added to the 10 da. + 30 da., making 56 days, the number of days from March 21st to May 16th. How many days from: 17. January 17th to March 13th? Ans. 55 da. 18. February 16th to May 1st (com. yr.)? Ans. 61 da. Ans. 38 da. 23. September 30th to Nov. 30th? 24. March 26th to May 3d? 25. What is the date for 50 days after March 7th ? 32. What date is 87 days before June 6th ? OPERATION. 87 da. 6 da. = 81 da. 81 da. 31 da. = 50 da. 50 da. 30 da. = 31 da. 20 da. 20 da. SOLUTION.-Subtracting 6 da. from 87 da. we have 81 da., the number of days before May 31st. Taking 31 da. we have 50 da., the number of days before April 30th. Subtracting 30 da. we have 20 da., the number of days before March 31st. Hence, 87 da. before June 6th is March 11th. What date is : 33. 47 days before March 3d ? 34. 83 days before May 17th? 35. 93 days before July 6th? 36. 60 days before April 19th? 37. 180 days before August 1st ? 38. 308 days before December 21st? 39. 201 days before October 11th ? Ans. Jan. 15th. Ans. Feb. 23d. Ans. April 4th. Ans. Feb. 18th. Ans. Feb. 2d. Ans. Feb. 16th. 40. 252 days before September 10th? CIRCULAR MEASURE. 168. Circular Measure is used to measure an gles. 169. The Unit of Circular Measure is the degree. It is the of the circumference of any circle. 1. How many seconds in a minute? In 3'? In 5'? In 2° ? In 4° ? 2. How many minutes in a degree? 3. How many minutes in 300"? In 120"? In 480"? 4. How many degrees in 180'? In 300'? In 600'? 5. How many degrees in a sign? In 7 signs? In 11 signs? In 15 signs? In 40 signs? 6. How many degrees in a sextant? In 2 sextants ? 7. How many degrees in a quadrant? In 3 quad.? 8. How many quadrants and degrees in 170°? 250° ? In 310° ? In 205° ? In 9. How many signs in 60 degrees? In 90 degrees? In 45 degrees? In 70 degrees? In 140 degrees? 10. How many quadrants in a circumference? In 5 circumferences? 7. 15° 29′ 37′′ to seconds. 8. 1963000" to higher denominations. 9. 96000" to degrees. 10. 38000" to higher denominations. 11. 86078" to degrees. 12. 1897000" to circumferences. Ans. 5400'. Ans. 55777". Ans. 26° 40'. Ans. 23° 54′ 38′′. articles in a dozen? In 3 dozen? In 5 dozen? In 13 dozen ? 2. How many articles in a dozen? In 3 dozen? In 7 dozen? In 6 dozen? In 12 dozen? 3. How many dozen in a gross? In 6 gross? In 15 gross? In 30 gross? In 25 gross? 4. How many gross in 60 dozen? In 48 dozen? In 144 dozen? In 156 dozen? In 288 dozen? 5. How many score in 80? In 60? In 140? In 200? In 75 ? In 125.? In 120 ? 6. How many years in 4 score 10? 77. How many sheets in a quire? quires? In 2 quires? In 24 quires? 8. How much paper in 48 sheets? 70 sheets? In 60 sheets? In 3 score 5 ? In 3 quires? In 7 In 96 sheets? In 9. How many quires in a ream? In 30 reams? In 16 reams? In 20 reams? 10. What cost a ream of WRITTEN In 25 reams? paper at 2 cents a sheet ? EXERCISES. 1. How many pencils in a box containing 2 great gross? Ans. 3456 pencils. 2. What cost 27 boxes of writing ink, each containing 2 dozen bottles, at 9 cents a bottle? Ans. $72.90. 3. How many reams of paper in 4678 sheets? 4. What will 7 reams of legal cap cost at 35 cents a quire ? Ans. $49. 5. What cost 9 boxes of fancy pen-holders, each containing gross, at 2 cents apiece? Ans. $16.20. 1. What cost 2 oz. of gold, if 3 pwt. cost $2.70 ? 2. What will 2 quarts of kerosene cost at 40 cents a gallon? At 20 cents a gallon? At 50 cents a gallon? 3. What will 3 quarts of tomatoes cost at $1.60 a bushel? 10 quarts? 25 quarts? 4. How many feet high is a horse 16 hands high? 5. What is the difference between two square feet and two feet square ? 6. At 8 cents a peck, how many bushels of apples can be bought for $6.00? |