2. A is situated in 71° west longitude, B in 107° west longitude. What time is it at B, when it is noon at A?

3. Find the longitude of B, whose time is 8:10:30 a.m., when it is 7: 15 A.M. at A, whose longitude is 156° 48' west.

Since B has the later time, its location is east of A. The difference in time, being nearly an hour, shows the difference in longitude to be nearly 15°. Find the exact difference. Is it to be added to 156° 48′ or subtracted from it, to give the longitude of B?

4. When it is 2:40 A.M. at A, in 57° 24' west longitude, it is 10 A.M. at B. Find the longitude of B.

If we go 110° eastward from A, we shall reach the prime meridian after going how many degrees and minutes? How many more degrees and minutes must we travel to reach B? Is B in east or in west longitude?

5. When it is noon at B, what is the time at A, the former being in longitude 44° east, and the latter in longitude 57° west?

NOTE. Before extracting the square root of the following, reduce the

mixed numbers to improper fractions.

150-23-48 162 (26+61) 174-41-35 165 (28+47) 172-1966 154-(36+44) 163-38-43 171

(32+33)

183-37-42 184-(39 +35) 155-49-24 180-(18+28) 161-12-71 173 - (57+17) 181 - 47-33 153 — (45+31)

1065. Oral Problems.

1. Paid 92 for coffee, 48 for butter, and 18¢ for lard. How much was my bill?

2. I had $150. Spent $23 for a suit of clothes and $48 for tools. How much was left?

3.

What is the area of a field 36 yd. by 31 yd.?

5. What is the cost of a cow if I pay $630 for 15?

6. How many ounces in 29 lb.?

7. 109 lb. sugar are divided among 4 people. What is the share of each?

8. At 1% per lb., how many lb. iron can I get for $5.70? 9. What will be the cost of 51 tons iron at $17 per ton? 10. What will be the average age of 9 boys, each 12 years old, and 6 boys, each 10 years old?

11. At 42 miles per hour, how long will it take a train to go 882 miles?

12. At 25 per hour, what will a man earn in 18 days of 10 hours?

13. What will be the net price of an article whose catalogue price is $20.00, the discount being 90 and 10%?

14. A man had $181 in bank. What will be his balance after taking out $ 47 and $33?

17. How many sq. yd. are there in a floor 10 yd. long and 61 yd. wide?

18. Cost of 372 eggs at 15% per doz.

19. A man owns 3 farms containing 65 acres, 86 acres, and 98 acres, respectively. How many acres does he own?

20. What is the area of a piece of glass measuring 81 by 61 inches?

21. What is the value in U. S. money of 50 marks at 238 cents?

22. How many francs will a calf cost, if 18 are worth 630 francs?

23. A man spends $1,740 per year. What is the average amount spent per month?

PROPORTION.

1068. A ratio is generally expressed by the sign (:). This is another form of the division sign (÷).