Directions 11-15: Each problem consists of a problem followed by two statements.
Decide whether the data in the statements are sufficient to answer the question. Select your
answer
according to whether:
(A) statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer
the question
(B) statement 2 alone is sufficient, but statement 1 alone is not sufficient to answer
thequestion
(C) both statements taken together are sufficient to answer the question, but neither
statementalone is sufficient
(D) each statement alone is sufficient
(E) statements 1 and 2 together are not sufficient, and additional data is needed to answer
the question
11. If x and y are both positive integers, how much greater is x than y?
x + y = 20
x = y²
12. Fifty percent of the articles in a certain magazine are written by staff members.
Sixty percent of the articles are on current affairs. If 75 percent of the articles on current
affairs are written by staff members with more than 5 years experience of journalism, how many of the articles on current affairs are written by journalists with more than 5 years
experience? 20 articles are written by staff members. Of the articles on topics other than
current affairs, 50 percent are by staff members with less than 5 years experience.
13. Is xy > 0 ?
x/y < 0
x + y < 0
14 One number, n, is selected at random from a set of 10 integers. What is the probability
that ½ n + 13 = 0 ? The largest integer in the set is 13. The arithmetic mean of the set is
zero?
15. Is w a whole number? 3w is an odd number. 2w is an even number

• 11.C
  12.A
  13.A
  14.E
  15.B
• 10 years agoHelpfull: Yes(5) No(1)
• 11)
  Ans::c
  x=16 y=4
  x=25 y=-5
  but we consider positive integers so ans C.
  ------------
  13)Ans:a
  from statement 1 :
  case1:
  x= positve y= negative then x/y0 false
  
  case 2:
  x=negative y=positve then x/y0 false
• 10 years agoHelpfull: Yes(3) No(2)
• 11)a
  12)c
  13)e
  14)c
  15)d
• 10 years agoHelpfull: Yes(2) No(4)
• 11) x=20-y
  x=y2
  y2+y-20=0
  y2+5y-4y-20=0
  y=4 y=-5,x=16
• 10 years agoHelpfull: Yes(1) No(4)
• 12) ans is 18
• 10 years agoHelpfull: Yes(1) No(1)
• 11.c
  12.a
  13.b
  14.e
  15.d
• 10 years agoHelpfull: Yes(0) No(0)