GWD6-5,14

dannysheng

Please help me on below two questions, Thanks a lot

Q5:

If b, c, and d are constants and x² + bx + c = (x + d)² for all values of x, what is the value of c?

(1)     d = 3

(2)     b = 6

                  

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

Answer:

Q14:

A total of 30 percent of the geese included in a certain migration study were male.  If some of the geese migrated during the study and 20 percent of the migrating geese were male, what was the ratio of the migration rate for the male geese to the migration rate for the female geese?

[Migration rate for geese of a certain sex = (number of geese of that sex migrating) / (total number of geese of that sex)]

 

A.     1/4

B.     7/12

C.     2/3

D.     7/8

E.      8/7

Answer: