Mr. Ellis let me have $100 for a year. At the end of the year I paid him 6% of $100, or $6, for the use of it. Money paid for the use of money is interest. The money on which interest is paid is the principal. The per cent of the principal paid each year for interest is the rate of interest. 1. What is the interest of $100 for 1 year at 3%? At 4%? At 5%? At 7%? At 8%? At 10%? 2. At 5%, how much must be paid $200 for 1 year? 2 years? 4 years? 5 years? Find the interest for 1 year on: for the use of Written 9 18. What part of a year is 6 months? 3 months? months? 4 months? 8 months? 2 months? 10 months? 1 month? 5 months? 7 months? 11 months? 19. At 4% a year, what part of a year's interest ought to be paid for the use of $300 for 3 months? What interest should be paid? At 6%, what is the interest on: 20. $800 for 3 months? 22. $500 for 4 months? 24. $300 for 8 months? 21. $700 for 2 months? 23. $400 for 10 months? 25. $400 for 7 months? Find the interest on: 26. $50 at 4% for 1 year 6 months. +27. $600 at 4% for 1 year 7 months. + 28. $80 at 5% for 2 years 3 months. 29. $600 at 6% for 2 years 1 month. 30. What is the interest on $132 for 2 years 7 months 31. $180 for 3 years at 5%; for 2 years at 4%. 32. $225 for 2 years 4 months at 4 %. 33. $420 for 3 years 3 months at 6%. 34. $360 for 2 years 10 months at 7%. X45. What is the interest on $240 at 5% from Jan. 1 to July 1? 46. How much must be paid for the use of $600 at 7% from Sept. 1 to Jan. 1? 47. On June 1 Mr. Nichols borrowed $225 at 6%. What interest was due Oct. 1? If Mr. Nichols paid both principal and interest Oct. 1, what amount did he pay? The sum of the principal and the interest is the amount. 48. On Jan. 1 Mr. Stevens bought a horse for $150, agreeing to pay for it in 6 months with interest at 5%. When must the money be paid? How much? 49. When money is worth 7%, what must be paid to settle in full a loan of $456 for 2 months? He paid rest in 4 50. Mr. Young bought a house for $3000. down of the price and promised to pay the months with interest at 5%. How much did he pay at time of settlement? 1. Add the numbers in each couplet. 2. Subtract the second term of each couplet from the first term. 3. Find the product of the terms in each couplet. 4. Divide the first term of each couplet by the second term. 5. Divide the second term of each couplet by the first term. 6. Make up problems based on the combinations in the table. MISCELLANEOUS PROBLEMS 1. The rainfall in a city in one year was as follows: January, 3.386 in. March, 5.900 in. April, 5.691 in. May, 0.818 in. June, 9.180 in. July, 2.621 in. August, 3.676 in. Mar 27) (1) What was the total rainfall for the year? (2) What was the average rainfall per month? (3) How much more rain fell in June than in July? (4) How much more rain fell in the first half of the year than in the last half of the year? (5) What amount fell in the three months of least rainfall? In the three months of greatest rainfall? X2. Four and one half acres of land were cut up into 24 house lots. What part of an acre was each lot? X3. Mr. Mason paid $240 for a carriage and sold it for 80% of what he paid. For how much did he sell it? 다른 X4. What per cent of the cost is loss when hay is bought at $20 a ton and sold at $18 a ton? 5. The area of Alaska is about 600,000 square miles. We paid Russia $7,200,000 for it. How much per square mile? Per acre? X6. A man spends of his salary, and saves $280. What is his salary? X 7. A earns $2 per day, and spends $13. How many days must he work to save $100? 8. A man owing a debt of $280 paid 40% of it at one time, and 50% of the remainder at another time. How much did he still owe? X 9. How many articles, at the following rates, can be purchased with a $5 bill: 121? 163¢? 50¢? 3314? 81? 61? 25? 31¢? 63¢? 10. How many yards of ribbon at 12 a yard are equal in value to 24 yards worth 331⁄2 a yard? 11. A fruit dealer bought a box of oranges for $2.50. He sold them for $3.50. What part of the cost did he gain? What per cent? 12. Add the quotients of .1152 ÷ 12 and 11.52 ÷ 12. 13. Find the difference between the quotient of .0124 and the product of .012 x 4. 14. Multiply the quotient of .084 by the sum of 2.12 and .88. 15. Divide the sum of 2.2 and .2 by their difference. 16. Mr. Hodge's bill for 15 days' work in making a farmer's wagon was $35.25. How much did he charge per day? |