1. A certain money market account that had a balance of $48，000 duringall of last month earned $360 in interest for the month. At whatsimple annual interest rate did the account earn interest last month?

　　A. 7% B.7.5% C.8% D.8.5% E.9%

　　2. Column A：The two-digit integer that equals twice the sum of its digits

　　Column B： 16

　　3. The number of households receiving monthly benefits in 1960 wasapproximately what fraction of the number receiving monthly benefits in 1975?

　　A. 9/10 B.5/6 C.16/27 D.11/32 E.8/35

　　4. When the even integer n is divided by 7， theremainder is 3.

　　Column A： The remainder when n is divided by 14

　　Column B ： 10

　　answer： C

　　5. Approximately how many more 10-year-old childrenwere there in 1980 than in 1986?

　　A. 100，000 B.200，000 C.300，000 D. 400，000 E.1，000，000

　　6. The population of females was greater in 1980 than in 1986 forapproximately what percent of the ages from 0 to 100 years?

　　A. 15% B.25% C.55% D.75% E.85%

　　7. In 1980 the ratio of the number of males to the number of femaleswas greatest for which of the following ages?

　　A. 10 B. 30 C.50 D.70 E.90