218. Written Exercises. Find results : 1. 24 x 216:48 5. 25 x 40 = 50 2. 25 x 105:15 6. 20 x 50 = 40 3. 26% 77 = 22 7. 40 x 50: 80 4. 34 x 33:12 8. 25 x 50 = 125 9. 121= 67 10. 187 61 11. 371 - 121 12. 874-121 n run 219. Oral Questions. 1. How many minutes in one hour ? in 14 hours ? 2. If a train runs at a constant rate of 20 miles per hour, in how many minutes does it run I mile ? 3. How many hours are there from 10 in the morning to 9 in the evening? 4. How long a time is it from 11 A.m. to 3:15 P.M. ? 5. How long a time is it from 11 P.M. to 3:30 A.M. ? 6. If a train runs 24 miles per hour, how many miles will it run from 11 A.M. to 1 P.M.? 7. If a man walks at the rate of 3 miles per hour, how far does he walk from 11 A.M. to 2 P.M.? 8. A man walking 4 miles per hour walked 6 miles by 1:30 P.M.; at what time did he start? 9. How many half-hours are there from 10 A.M. to 10 P.M.? 10. How many quarter-hours from 12 m. to 10 P.M. ? 220. Number of Days in each Month. 221. Written Problems. 1. How many minutes are there in Christmas day? 2. If Mary's pulse beats 85 times to the minute, how many times does it beat in an hour ? 3. Divide 219+56 by 208-197. 4. How many times does the minute-hand of the clock go round during January? 5. How many times does the hour-hand of the clock go round during a common year? (365 days) 6. A man bought two pairs of shoes at $1.50 a pair, a sack of salt for $ .90, and a saddle for $9; how much did he pay for all ? 7. If each page of a book has 27 lines, how many lines are on 94 pages ? 8. The stars rise 4 minutes earlier every night; in how many days will a star rise at 9 o'clock if it rises tonight at 10 o'clock ? 9. A man walked 24 miles Monday, 23 miles Tuesday, and 25 miles Wednesday; how many miles did he average per day? 10. A train ran 484 miles in 22 hours; what was the average rate per hour ? 11. A train ran 900 miles in 41 hours, stopping 5 hours within the time; what was the average speed while running ? 12. How much must be paid for 17 sheep at $5.25 a head ? NO 226. Oral Problems. 1. If a gallon of water weigh 10 pounds, how much would 41 gallons weigh? 2. If Mary steps 2 feet each time, how many yards does she walk in taking 3 steps ? 3. If a pint of cream will make a cake of butter, how many such cakes will a quart and a half of cream make ? 4. If a cow gives 7 quarts of milk twice a day, how many gallons will she give in 2 days ? 5. What should 34 quarts of milk cost at 10 cents per quart ? 6. Mrs. Jones filled 8 pans, each holding 14 quarts, with milk; how many gallons did the pans hold ? 7. If you divide a number by 16 the quotient will be 6; what is the number? 8. What is the cost of a bushel of potatoes when $250 is paid for 100 bushels ? 9. How many pounds of rice, at 6 cents a pound, can be bought for $18? 10. When the Fourth of July comes on Friday, what day of the week is June 30 ? 11. A man walking 4 miles an hour walked 6 miles by 1:30 P. M. At what time did he start? 12. A man walking 4 miles an hour started at 11:45 A. M. What time was it when he had walked 5 miles ? 13. If a man earns 20 cents an hour, how much does he earn from 10 A. M. to 3:30 P.M. ? |